G2 Electroshock Grenade "Sonic Electric Ball Breakers (SEBB)" [Revive…

…d Edition] (#6667)

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# About the pull request

For all means and purposes, this is a repr of
#5697, approval to repr was
given by pr author, all code belongs to the author as well, i only did
minor edits.

Adds the G2 electroshock grenade, "Sonic Electric ball breaker" as
mentioned in the movies or SEBB for short. It's purpose is to be a
tactical option for the marines, as it deals slowdown instead of
stun/damage. (unless you stand on top of it)

Only meaningful damage is to marines and especially synths, since a 1.2
Gigavolt charge is probably not healthy for bioelectrics.

Can be used as a mine as well.

# Explain why it's good for the game

More marine utility weapons and content, we can probably lower the
amount of HEDPs slightly to balance it out aswell.

- [lore accurate
af](https://avp.fandom.com/wiki/G2_Electroshock_Grenade), as mentioned
in the movie and the tech manual


# Testing Photographs and Procedure
<!-- Include any screenshots/videos/debugging steps of the modified code
functioning successfully, ideally including edge cases. -->

<!-- !! If you are modifying sprites, you **must** include one or more
in-game screenshots or videos of the new sprites. !! -->

<details>
<summary>Screenshots & Videos</summary>


https://github.com/cmss13-devs/cmss13/assets/100090741/eed7440f-e828-4545-b3e1-9c89e618985e



https://github.com/cmss13-devs/cmss13/assets/100090741/bbfcf1af-94f4-41ae-8f43-726fee7a37b7


![image](https://github.com/cmss13-devs/cmss13/assets/100090741/5b18710d-2812-447e-b0f9-ca9e222d5349)



</details>


# Changelog

<!-- If your PR modifies aspects of the game that can be concretely
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it's best to shoot for clear communication right off the bat. -->
<!-- If you add a name after the ':cl', that name will be used in the
changelog. You must add your CKEY after the CL if your GitHub name
doesn't match. Maintainers freely reserve the right to remove and add
tags should they deem it appropriate. -->

:cl: TotalEpicness5, Triiodine, monkeyfist, Blundir
add: Adds the G2 electroshock grenade. This grenade does not stun nor
deal serious damage to xenos, but it stuns via electric shock. It can
create EMP-like effects when faced with electronic devices like
sentries, synths, Area Power Controllers, etc. It's damage is reduced by
energy armor.
fix: take_overall_armoured_damage now can actually deal burn damage
balance: Marine armor has a small bit of energy armor added back. Heavy
armor has slightly more protection than medium/light.
fix: Mines now check for explosive antigrief checks
/:cl:

code/datums/supply_packs/explosives.dm

@@ -89,6 +89,18 @@
 	containername = "\improper explosive M40 HEDP grenades crate (WARNING)"
 	group = "Explosives"
 
+/datum/supply_packs/explosives_sebb
+	name = "G2 electroshock grenades crate (x6)"
+	contains = list(
+		/obj/item/storage/box/packet/sebb,
+		/obj/item/storage/box/packet/sebb,
+	)
+	cost = 30
+	containertype = /obj/structure/closet/crate/explosives
+	containername = "\improper G2 electroshock grenades crate (WARNING)"
+	group = "Explosives"
+
+
 /datum/supply_packs/explosives_hedp
 	name = "M40 HEDP blast grenade box crate (x25)"
 	contains = list(

code/game/machinery/vending/vendor_types/crew/commanding_officer.dm

@@ -32,6 +32,7 @@ GLOBAL_LIST_INIT(cm_vending_gear_commanding_officer, list(
 		list("HEDP Grenade Pack", 15, /obj/item/storage/box/packet/high_explosive, null, VENDOR_ITEM_REGULAR),
 		list("HEFA Grenade Pack", 15, /obj/item/storage/box/packet/hefa, null, VENDOR_ITEM_REGULAR),
 		list("WP Grenade Pack", 15, /obj/item/storage/box/packet/phosphorus, null, VENDOR_ITEM_REGULAR),
+		list("G2 Electroshock Grenade Packet (x3 grenades)",  15, /obj/item/storage/box/packet/sebb, null, VENDOR_ITEM_REGULAR),
 
 		list("RAIL ATTACHMENTS", 0, null, null, null),
 		list("Red-Dot Sight", 15, /obj/item/attachable/reddot, null, VENDOR_ITEM_REGULAR),

code/game/machinery/vending/vendor_types/requisitions.dm

@@ -55,6 +55,7 @@
 		list("M74 AGM-Smoke Airburst Grenade", floor(scale * 4), /obj/item/explosive/grenade/smokebomb/airburst, VENDOR_ITEM_REGULAR),
 		list("M74 AGM-Star Shell", floor(scale * 2), /obj/item/explosive/grenade/high_explosive/airburst/starshell, VENDOR_ITEM_REGULAR),
 		list("M74 AGM-Hornet Shell", floor(scale * 4), /obj/item/explosive/grenade/high_explosive/airburst/hornet_shell, VENDOR_ITEM_REGULAR),
+		list("G2 Electroshock Grenade", round(scale * 5), /obj/item/explosive/grenade/sebb, VENDOR_ITEM_REGULAR),
 		list("M40 HIRR Baton Slug", floor(scale * 8), /obj/item/explosive/grenade/slug/baton, VENDOR_ITEM_REGULAR),
 		list("M40 MFHS Metal Foam Grenade", floor(scale * 6), /obj/item/explosive/grenade/metal_foam, VENDOR_ITEM_REGULAR),
 		list("Plastic Explosives", floor(scale * 3), /obj/item/explosive/plastic, VENDOR_ITEM_REGULAR),
@@ -154,6 +155,7 @@
 		list("M74 AGM-Airburst Smoke Grenade Packet", 0, /obj/item/storage/box/packet/airburst_smoke, VENDOR_ITEM_REGULAR),
 		list("M74 AGM-S Star Shell Packet", 0, /obj/item/storage/box/packet/flare, VENDOR_ITEM_REGULAR),
 		list("M74 AGM-H Hornet Shell Packet", 0, /obj/item/storage/box/packet/hornet, VENDOR_ITEM_REGULAR),
+		list("G2 Electroshock grenade packet", 0, /obj/item/storage/box/packet/sebb, VENDOR_ITEM_REGULAR),
 		list("M20 mine box", 0, /obj/item/storage/box/explosive_mines, VENDOR_ITEM_REGULAR),
 
 		list("OTHER BOXES", -1, null, null),

code/game/machinery/vending/vendor_types/squad_prep/squad_engineer.dm

@@ -35,6 +35,7 @@ GLOBAL_LIST_INIT(cm_vending_gear_engi, list(
 		list("M74 AGM-Hornet Airburst Packet (x3 airburst grenades", 20, /obj/item/storage/box/packet/hornet, null, VENDOR_ITEM_REGULAR),
 		list("M20 Mine Box (x4 mines)", 18, /obj/item/storage/box/explosive_mines, null, VENDOR_ITEM_REGULAR),
 		list("M40 MFHS Metal Foam Grenade", 5, /obj/item/explosive/grenade/metal_foam, null, VENDOR_ITEM_REGULAR),
+		list("G2 Electroshock Grenade Packet (x3 grenades)",  16, /obj/item/storage/box/packet/sebb, null, VENDOR_ITEM_REGULAR),
 
 		list("PRIMARY AMMUNITION", 0, null, null, null),
 		list("M4RA AP Magazine (10x24mm)", 6, /obj/item/ammo_magazine/rifle/m4ra/ap, null, VENDOR_ITEM_REGULAR),

code/game/machinery/vending/vendor_types/squad_prep/squad_leader.dm

@@ -61,6 +61,7 @@ GLOBAL_LIST_INIT(cm_vending_gear_leader, list(
 		list("M74 AGM-Hornet Airburst Packet (x3 airburst grenades", 20, /obj/item/storage/box/packet/hornet, null, VENDOR_ITEM_REGULAR),
 		list("M20 Mine Box (x4 mines)", 20, /obj/item/storage/box/explosive_mines, null, VENDOR_ITEM_REGULAR),
 		list("M40 MFHS Metal Foam Grenade", 5, /obj/item/explosive/grenade/metal_foam, null, VENDOR_ITEM_REGULAR),
+		list("G2 Electroshock Grenade Packet (x3 grenades)",  16, /obj/item/storage/box/packet/sebb, null, VENDOR_ITEM_REGULAR),
 
 		list("MEDICAL SUPPLIES", 0, null, null, null),
 		list("Burn Kit", 2, /obj/item/stack/medical/advanced/ointment, null, VENDOR_ITEM_REGULAR),

code/game/machinery/vending/vendor_types/squad_prep/squad_medic.dm

@@ -57,6 +57,7 @@ GLOBAL_LIST_INIT(cm_vending_gear_medic, list(
 		list("M74 AGM-Smoke Airburst Packet (x3 airburst grenades)", 10, /obj/item/storage/box/packet/airburst_smoke, null, VENDOR_ITEM_REGULAR),
 		list("M74 AGM-Hornet Airburst Packet (x3 airburst grenades", 20, /obj/item/storage/box/packet/hornet, null, VENDOR_ITEM_REGULAR),
 		list("M20 Mine Box (x4 mines)", 20, /obj/item/storage/box/explosive_mines, null, VENDOR_ITEM_REGULAR),
+		list("G2 Electroshock Grenade Packet (x3 grenades)",  16, /obj/item/storage/box/packet/sebb, null, VENDOR_ITEM_REGULAR),
 
 		list("PRIMARY AMMUNITION", 0, null, null, null),
 		list("M4RA AP Magazine (10x24mm)", 6, /obj/item/ammo_magazine/rifle/m4ra/ap, null, VENDOR_ITEM_REGULAR),

code/game/machinery/vending/vendor_types/squad_prep/squad_specialist.dm

@@ -32,6 +32,7 @@ GLOBAL_LIST_INIT(cm_vending_gear_spec, list(
 		list("M74 AGM-F Fragmentation Grenades x6", 40, /obj/effect/essentials_set/agmf_6_pack, null, VENDOR_ITEM_REGULAR),
 		list("M74 AGM-I Incendiary Grenades x6", 40, /obj/effect/essentials_set/agmi_6_pack, null, VENDOR_ITEM_REGULAR),
 		list("M74 AGM-S Smoke Grenades x6", 20, /obj/effect/essentials_set/agms_6_pack, null, VENDOR_ITEM_REGULAR),
+		list("G2 Electroshock Grenade Pack x6", 40, /obj/effect/essentials_set/sebb_6_pack, null, VENDOR_ITEM_REGULAR),
 
 		list("EXTRA FLAMETHROWER TANKS", 0, null, null, null),
 		list("Large Incinerator Tank", 40, /obj/item/ammo_magazine/flamer_tank/large, null, VENDOR_ITEM_REGULAR),
@@ -249,3 +250,13 @@ GLOBAL_LIST_INIT(cm_vending_clothing_specialist, list(
 		/obj/item/explosive/grenade/smokebomb/airburst,
 		/obj/item/explosive/grenade/smokebomb/airburst,
 	)
+
+/obj/effect/essentials_set/sebb_6_pack
+	spawned_gear_list = list(
+		/obj/item/explosive/grenade/sebb,
+		/obj/item/explosive/grenade/sebb,
+		/obj/item/explosive/grenade/sebb,
+		/obj/item/explosive/grenade/sebb,
+		/obj/item/explosive/grenade/sebb,
+		/obj/item/explosive/grenade/sebb,
+	)

code/game/machinery/vending/vendor_types/squad_prep/squad_tl.dm

@@ -12,6 +12,7 @@ GLOBAL_LIST_INIT(cm_vending_gear_tl, list(
 		list("M74 AGM-Hornet Airburst Packet (x3 airburst grenades", 20, /obj/item/storage/box/packet/hornet, null, VENDOR_ITEM_REGULAR),
 		list("M20 Mine Box (x4 mines)", 20, /obj/item/storage/box/explosive_mines, null, VENDOR_ITEM_REGULAR),
 		list("M40 MFHS Metal Foam Grenade", 5, /obj/item/explosive/grenade/metal_foam, null, VENDOR_ITEM_REGULAR),
+		list("G2 Electroshock Grenade Packet (x3 grenades)",  16, /obj/item/storage/box/packet/sebb, null, VENDOR_ITEM_REGULAR),
 
 		list("PRIMARY AMMUNITION", 0, null, null, null),
 		list("M4RA AP Magazine (10x24mm)", 10, /obj/item/ammo_magazine/rifle/m4ra/ap, null, VENDOR_ITEM_REGULAR),

code/game/objects/effects/overlays.dm

@@ -223,6 +223,7 @@
 	icon_state = "empdisable"
 	name = "emp sparks"
 	effect_duration = 10
+	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
 
 /obj/effect/overlay/temp/emp_sparks/New(loc)
 	setDir(pick(GLOB.cardinals))
@@ -234,8 +235,12 @@
 	icon_state = "emppulse"
 	effect_duration = 20
 
-
-
+/obj/effect/overlay/temp/elec_arc
+	icon = 'icons/effects/effects.dmi'
+	icon_state = "electricity"
+	name = "electric arc"
+	effect_duration = 3 SECONDS
+	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
 
 //gib animation
 

code/game/objects/items/explosives/grenades/marines.dm

@@ -465,6 +465,187 @@
 	icon_state = "grenade_phos_clf"
 	item_state = "grenade_phos_clf"
 
+/obj/item/explosive/grenade/sebb
+	name = "\improper G2 Electroshock grenade"
+	desc = "This is a G2 Electroshock Grenade. Produced by Armat Battlefield Systems, it's sometimes referred to as the Sonic Electric Ball Breaker, \
+		after a rash of incidents where the intense 1.2 gV sonic payload caused... rupturing. \
+		A bounding landmine mode is available for this weapon which activates a small drill to self-bury itself when planted. Simply plant it at your feet and walk away."
+	icon_state = "grenade_sebb"
+	item_state = "grenade_sebb"
+	det_time = 3 SECONDS
+	underslug_launchable = TRUE
+	/// Maximum range of effect
+	var/range = 5
+	/// Maximum possible damage before falloff.
+	var/damage = 110
+	/// Factor to mutiply the effect range has on damage.
+	var/falloff_dam_reduction_mult = 20
+	/// Post falloff calc damage is divided by this to get xeno slowdown
+	var/xeno_slowdown_numerator = 12
+	/// Post falloff calc damage is multipled by this to get human stamina damage
+	var/human_stam_dam_factor = 0.9
+
+/obj/item/explosive/grenade/sebb/get_examine_text(mob/user)
+	. = ..()
+	. += SPAN_NOTICE("To put into mine mode, plant at feet.")
+
+/obj/item/explosive/grenade/sebb/afterattack(atom/target, mob/user, proximity)
+	var/turf/user_turf = get_turf(user)
+	if(active)
+		return
+
+	if(!isturf(target))
+		return
+
+	if(user.action_busy)
+		return
+
+	if(target != get_turf(user))
+		return
+
+	if(locate(/obj/item/explosive/mine) in get_turf(src))
+		to_chat(user, SPAN_WARNING("There already is a mine at this position!"))
+		return
+
+	if(antigrief_protection && user.faction == FACTION_MARINE && explosive_antigrief_check(src, user))
+		to_chat(user, SPAN_WARNING("\The [name]'s safe-area accident inhibitor prevents you from planting!"))
+		msg_admin_niche("[key_name(user)] attempted to plant \a [name] in [get_area(src)] [ADMIN_JMP(src.loc)]")
+		return
+
+	if(ishuman(user))
+		var/mob/living/carbon/human/human = user
+		if(!human.allow_gun_usage)
+			to_chat(user, SPAN_WARNING("Your programming prevents you from using this!"))
+			return
+
+	if(user_turf && (user_turf.density || locate(/obj/structure/fence) in user_turf))
+		to_chat(user, SPAN_WARNING("You can't plant a mine here."))
+		return
+
+	if(Adjacent(/obj/item/explosive/mine)) // bit more strict on this than normal mines
+		to_chat(user, SPAN_WARNING("Too close to another mine! Plant it somewhere less obvious."))
+		return
+
+	user.visible_message(SPAN_NOTICE("[user] starts deploying [src]."),
+		SPAN_NOTICE("You switch [src] into landmine mode and start placing it..."))
+	playsound(user.loc, 'sound/effects/thud.ogg', 40)
+	if(!do_after(user, 5 SECONDS * user.get_skill_duration_multiplier(SKILL_CONSTRUCTION), INTERRUPT_ALL|BEHAVIOR_IMMOBILE, BUSY_ICON_BUILD))
+		to_chat(user, SPAN_NOTICE("You stop planting."))
+		return
+
+	user.visible_message(SPAN_NOTICE("[user] finishes deploying [src]."),
+		SPAN_NOTICE("You finish deploying [src]."))
+	var/obj/item/explosive/mine/sebb/planted = new /obj/item/explosive/mine/sebb(get_turf(user))
+	planted.activate_sensors()
+	planted.iff_signal = user.faction // assuring IFF is set
+	planted.pixel_x += rand(-5, 5)
+	planted.pixel_y += rand(-5, 5)
+	qdel(src)
+
+/obj/item/explosive/grenade/sebb/activate()
+	..()
+	var/beeplen = 6 // Actual length of the sound rounded up to nearest decisecond
+	var/soundtime = det_time - beeplen
+	if(det_time < beeplen) // just play sound if detonation shorter than the sound
+		playsound(loc, 'sound/effects/sebb_explode.ogg', 90, 0, 10)
+	else
+		addtimer(CALLBACK(GLOBAL_PROC, GLOBAL_PROC_REF(playsound), loc, 'sound/effects/sebb_beep.ogg', 60, 0, 10), soundtime)
+
+
+
+/obj/item/explosive/grenade/sebb/prime()
+	var/datum/effect_system/spark_spread/sparka = new
+	var/turf/sebb_turf = get_turf(src)
+	var/list/full_range = oview(range, src) // Fill a list of stuff in the range so we won't have to spam oview
+	new /obj/effect/overlay/temp/sebb(sebb_turf)
+
+	playsound(src.loc, 'sound/effects/sebb_explode.ogg', 90, 0, 10)
+
+	for(var/obj/structure/machinery/defenses/sentry/sentry_stun in full_range)
+		sentry_stun.sentry_range = 0 // Temporarily "disable" the sentry by killing its range then setting it back.
+		new /obj/effect/overlay/temp/elec_arc(get_turf(sentry_stun))  // sprites are meh but we need visual indication that the sentry was messed up
+		addtimer(VARSET_CALLBACK(sentry_stun, sentry_range, initial(sentry_stun.sentry_range)), 5 SECONDS) // assure to set it back
+		sentry_stun.visible_message(SPAN_DANGER("[src]'s screen flickes violently as it's shocked!"))
+		sentry_stun.visible_message(SPAN_DANGER("[src] says \"ERROR: Fire control system resetting due to critical voltage flucuation!\""))
+		sparka.set_up(1, 1, sentry_stun)
+		sparka.start()
+
+	for(var/turf/turf in full_range)
+		if(prob(8))
+			var/datum/effect_system/spark_spread/sparkTurf = new //using a different spike system because the spark system doesn't like when you reuse it for differant things
+			sparkTurf.set_up(1, 1, turf)
+			sparkTurf.start()
+		if(prob(10))
+			new /obj/effect/overlay/temp/emp_sparks(turf)
+
+	for(var/mob/living/carbon/mob in full_range) // no legacy mob support
+
+		var/mob_dist = get_dist(src, mob) // Distance from mob
+
+		/**
+		 * Damage equation: damage - (mob distance * falloff_dam_reduction_mult)
+		 * Example: A marine is 3 tiles out, the distance (3) is multiplied by falloff_dam_reduction_mult to get falloff.
+		 * The raw damage is minused by falloff to get actual damage
+		*/
+
+		var/falloff = mob_dist * falloff_dam_reduction_mult
+		var/damage_applied = damage - falloff // Final damage applied after falloff calc
+		sparka.set_up(1, 1, mob)
+		sparka.start()
+		shake_camera(mob, 1, 1)
+		if(ishuman(mob))
+			var/mob/living/carbon/human/shocked_human = mob
+			if(isspeciessynth(shocked_human)) // Massive overvoltage to ungrounded robots is pretty bad
+				shocked_human.Stun(1 + (damage_applied/40))
+				damage_applied *= 1.5
+				new /obj/effect/overlay/temp/elec_arc(get_turf(shocked_human))
+				to_chat(mob, SPAN_HIGHDANGER("All of your systems jam up as your main bus is overvolted by [damage_applied*2] volts."))
+				mob.visible_message(SPAN_WARNING("[mob] seizes up from the elctric shock"))
+			shocked_human.take_overall_armored_damage(damage_applied, ARMOR_ENERGY, BURN, 90) // 90% chance to be on additional limbs
+			shocked_human.make_dizzy(damage_applied)
+			mob.apply_stamina_damage(damage_applied*human_stam_dam_factor) // Stamina damage
+			shocked_human.emote("pain")
+		else //nonhuman damage + slow
+			mob.apply_damage(damage_applied, BURN)
+			if((mob_dist < (range-3))) // 2 tiles around small superslow
+				mob.Superslow(2)
+			mob.Slow(damage_applied/11)
+
+		if(mob_dist < 1) // Range based stuff, standing ontop of the equivalent of a canned lighting bolt should mess you up.
+			mob.Superslow(3) // Note that humans will likely be in stamcrit so it's always worse for them when ontop of it and we can just balancing it on xenos.
+			mob.eye_blurry = damage_applied/4
+			mob.Daze(1)
+		else if((mob_dist < (range-1)) && (mob.mob_size < MOB_SIZE_XENO_VERY_SMALL)) // Flicker stun humans that are closer to the grenade and larvas too.
+			mob.apply_effect(1 + (damage_applied/100),WEAKEN) // 1 + damage/40
+			mob.eye_blurry = damage_applied/8
+
+		else
+			to_chat(mob, SPAN_HIGHDANGER("Your entire body seizes up as a powerful shock courses through it!"))
+
+
+		new /obj/effect/overlay/temp/emp_sparks(mob)
+		mob.make_jittery(damage_applied*2)
+	empulse(src, 1, 2) // mini EMP
+	qdel(src)
+
+
+/obj/item/explosive/grenade/sebb/primed
+	desc = "A G2 Electroshock Grenade, looks like it's quite angry! Oh shit!"
+	det_time = 7 // 0.7 seconds to blow up. We want them to get caught if they go through.
+
+/obj/item/explosive/grenade/sebb/primed/Initialize()
+	. = ..()
+	src.visible_message(SPAN_HIGHDANGER("[src] pops out of the ground!"))
+	activate()
+
+/obj/effect/overlay/temp/sebb
+	icon = 'icons/effects/sebb.dmi'
+	icon_state = "sebb_explode"
+	layer = ABOVE_LIGHTING_PLANE
+	pixel_x = -175 // We need these offsets to force center the sprite because BYOND is dumb
+	pixel_y = -175
+	appearance_flags = RESET_COLOR
+
 /*
 //================================================
 			Nerve Gas Grenades

code/game/objects/items/explosives/mine.dm

@@ -14,6 +14,7 @@
 	throw_speed = SPEED_VERY_FAST
 	unacidable = TRUE
 	flags_atom = FPRINT|CONDUCT
+	antigrief_protection = TRUE
 	allowed_sensors = list(/obj/item/device/assembly/prox_sensor)
 	max_container_volume = 120
 	reaction_limits = list( "max_ex_power" = 105, "base_ex_falloff" = 60, "max_ex_shards" = 32,
@@ -71,7 +72,12 @@
 	if(active || user.action_busy)
 		return
 
-	user.visible_message(SPAN_NOTICE("[user] starts deploying [src]."), \
+	if(antigrief_protection && user.faction == FACTION_MARINE && explosive_antigrief_check(src, user))
+		to_chat(user, SPAN_WARNING("\The [name]'s safe-area accident inhibitor prevents you from planting!"))
+		msg_admin_niche("[key_name(user)] attempted to plant \a [name] in [get_area(src)] [ADMIN_JMP(src.loc)]")
+		return
+
+	user.visible_message(SPAN_NOTICE("[user] starts deploying [src]."),
 		SPAN_NOTICE("You start deploying [src]."))
 	if(!do_after(user, 40, INTERRUPT_NO_NEEDHAND, BUSY_ICON_HOSTILE))
 		user.visible_message(SPAN_NOTICE("[user] stops deploying [src]."), \
@@ -317,3 +323,19 @@
 	customizable = TRUE
 	matter = list("metal" = 3750)
 	has_blast_wave_dampener = TRUE
+
+/obj/item/explosive/mine/sebb
+	name = "\improper G2 Electroshock grenade"
+	icon_state = "grenade_sebb_planted"
+	desc = "A G2 electroshock grenade planted as a landmine."
+	pixel_y = -5
+	anchored = TRUE // this is supposed to be planeted already when spawned
+
+/obj/item/explosive/mine/sebb/disarm()
+	. = ..()
+	new /obj/item/explosive/grenade/sebb(get_turf(src))
+	qdel(src)
+
+/obj/item/explosive/mine/sebb/prime()
+	new /obj/item/explosive/grenade/sebb/primed(get_turf(src))
+	qdel(src)

code/modules/clothing/head/helmet.dm

@@ -354,7 +354,7 @@ GLOBAL_LIST_INIT(allowed_helmet_items, list(
 	armor_melee = CLOTHING_ARMOR_MEDIUM
 	armor_bullet = CLOTHING_ARMOR_MEDIUM
 	armor_laser = CLOTHING_ARMOR_MEDIUMLOW
-	armor_energy = CLOTHING_ARMOR_NONE
+	armor_energy = CLOTHING_ARMOR_LOW
 	armor_bomb = CLOTHING_ARMOR_LOW
 	armor_bio = CLOTHING_ARMOR_MEDIUM
 	armor_rad = CLOTHING_ARMOR_LOW

code/modules/clothing/suits/marine_armor/_marine_armor.dm

@@ -50,7 +50,7 @@
 	armor_melee = CLOTHING_ARMOR_MEDIUM
 	armor_bullet = CLOTHING_ARMOR_MEDIUM
 	armor_laser = CLOTHING_ARMOR_MEDIUMLOW
-	armor_energy = CLOTHING_ARMOR_NONE
+	armor_energy = CLOTHING_ARMOR_LOW
 	armor_bomb = CLOTHING_ARMOR_MEDIUMLOW
 	armor_bio = CLOTHING_ARMOR_MEDIUM
 	armor_rad = CLOTHING_ARMOR_MEDIUMLOW
@@ -361,6 +361,7 @@
 	armor_bomb = CLOTHING_ARMOR_MEDIUM
 	armor_bio = CLOTHING_ARMOR_MEDIUMHIGH
 	armor_internaldamage = CLOTHING_ARMOR_MEDIUMHIGH
+	armor_energy = CLOTHING_ARMOR_MEDIUM
 	specialty = "B12 pattern marine"
 	light_range = 5
 
@@ -547,6 +548,7 @@
 	armor_bomb = CLOTHING_ARMOR_HIGHPLUS
 	armor_bio = CLOTHING_ARMOR_MEDIUMHIGH
 	armor_rad = CLOTHING_ARMOR_MEDIUM
+	armor_energy = CLOTHING_ARMOR_MEDIUMLOW
 	armor_internaldamage = CLOTHING_ARMOR_MEDIUMHIGH
 	storage_slots = 2
 	slowdown = SLOWDOWN_ARMOR_LOWHEAVY
@@ -591,6 +593,7 @@
 	armor_bio = CLOTHING_ARMOR_MEDIUMLOW
 	armor_rad = CLOTHING_ARMOR_MEDIUMHIGH
 	armor_internaldamage = CLOTHING_ARMOR_MEDIUMHIGH
+	armor_energy = CLOTHING_ARMOR_MEDIUM
 	storage_slots = 2
 	flags_inventory = BLOCKSHARPOBJ|BLOCK_KNOCKDOWN
 	flags_armor_protection = BODY_FLAG_CHEST|BODY_FLAG_GROIN|BODY_FLAG_ARMS|BODY_FLAG_LEGS|BODY_FLAG_FEET
@@ -632,6 +635,7 @@
 	armor_bullet = CLOTHING_ARMOR_MEDIUMHIGH
 	armor_bomb = CLOTHING_ARMOR_VERYHIGH
 	armor_bio = CLOTHING_ARMOR_MEDIUMLOW
+	armor_energy = CLOTHING_ARMOR_MEDIUM
 	armor_internaldamage = CLOTHING_ARMOR_MEDIUMHIGH
 	flags_inventory = BLOCKSHARPOBJ|BLOCK_KNOCKDOWN
 	flags_item = MOB_LOCK_ON_EQUIP|NO_CRYO_STORE