cupola and m56 mounted

- Mounted SGs now utilize real 10x28
- Vehicle attachment M56 Cupolas also use 10x28
- All 10x28 sentry variants use same ammo
- irradiated smartgun drums now work with all smartguns

code/modules/cm_marines/smartgun_mount.dm

@@ -16,7 +16,7 @@
 	flags_magazine = NO_FLAGS //can't be refilled or emptied by hand
 	caliber = "10x28mm"
 	max_rounds = 700
-	default_ammo = /datum/ammo/bullet/machinegun
+	default_ammo = /datum/ammo/bullet/rifle/heavy
 	gun_type = null
 
 
@@ -428,7 +428,7 @@
 	health = 200
 	var/health_max = 200 //Why not just give it sentry-tier health for now.
 	var/atom/target = null // required for shooting at things.
-	var/datum/ammo/bullet/machinegun/ammo = /datum/ammo/bullet/machinegun
+	var/datum/ammo/bullet/rifle/heavy/ammo = /datum/ammo/bullet/rifle/heavy
 	var/obj/projectile/in_chamber = null
 	var/locked = 0 //1 means its locked inplace (this will be for sandbag MGs)
 	var/muzzle_flash_lum = 4

code/modules/defenses/sentry.dm

@@ -570,7 +570,7 @@
 	name = "Modified UA-577 Gauss Turret"
 	desc = "A deployable, semi-automated turret with AI targeting capabilities. Armed with an M30 Autocannon and a high-capacity drum magazine. This one's IFF system has been disabled, and it will open fire on any targets within range."
 	faction_group = null
-	ammo = new /obj/item/ammo_magazine/sentry/premade/dumb
+	ammo = new /obj/item/ammo_magazine/sentry
 
 //the turret inside a static sentry deployment system
 /obj/structure/machinery/defenses/sentry/premade/deployable

code/modules/projectiles/ammo_boxes/round_boxes.dm

@@ -46,7 +46,7 @@
 	name = "\improper smartgun ammunition box (10x28mm)"
 	desc = "A 10x28mm ammunition box. Used to refill smartgun drum magazines. It comes with a leather strap allowing to wear it on the back."
 	overlay_content = "_reg"
-	default_ammo = /datum/ammo/bullet/smartgun
+	default_ammo = /datum/ammo/bullet/rifle/heavy
 	caliber = "10x28mm"
 	bullet_amount = 1000
 	max_bullet_amount = 1000

code/modules/projectiles/magazines/sentries.dm

@@ -19,9 +19,6 @@
 	max_rounds = 99999
 	current_rounds = 99999
 
-/obj/item/ammo_magazine/sentry/premade/dumb
-	default_ammo = /datum/ammo/bullet/rifle/heavy
-
 /obj/item/ammo_magazine/sentry/upp
 	name = "AK-500 ammo drum (10x31mm Caseless)"
 	desc = "An ammo drum of 10x31mm caseless rounds for the UPPA 32-H sentry. Just feed it into the sentry gun's ammo port when its ammo is depleted."

code/modules/projectiles/magazines/specialist.dm

@@ -109,7 +109,7 @@
 	desc = "What at first glance appears to be a standard 500 round M56 Smartgun drum, is actually a drum loaded with irradiated rounds, providing an extra 'oomph' to to its bullets. The magazine itself is slightly modified to only fit in M56D or M56T smartguns, and is marked with a red X."
 	icon_state = "m56_drum_dirty"
 	default_ammo = /datum/ammo/bullet/smartgun/dirty
-	gun_type = /obj/item/weapon/gun/smartgun/dirty
+	gun_type = /obj/item/weapon/gun/smartgun
 
 /obj/item/ammo_magazine/smartgun/holo_targetting
 	name = "holotargetting smartgun drum"

code/modules/vehicles/hardpoints/hardpoint_ammo/cupola_ammo.dm

@@ -1,11 +1,11 @@
 /obj/item/ammo_magazine/hardpoint/m56_cupola
 	name = "M56 Cupola Magazine"
 	desc = "A secondary armament MG magazine"
-	caliber = "10x28mm" //Correlates to smartguns
+	caliber = "10x28mm"
 	icon = 'icons/obj/items/weapons/guns/ammo_by_faction/uscm.dmi'
 	icon_state = "cupola_1"
 	w_class = SIZE_LARGE
-	default_ammo = /datum/ammo/bullet/smartgun
+	default_ammo = /datum/ammo/bullet/rifle/heavy
 	max_rounds = 1000
 	gun_type = /obj/item/hardpoint/secondary/m56cupola
 

code/modules/vehicles/hardpoints/hardpoint_ammo/firing_port_weapon_ammo.dm

@@ -5,7 +5,7 @@
 	icon = 'icons/obj/items/weapons/guns/ammo_by_faction/uscm.dmi'
 	icon_state = "cupola_1"
 	w_class = SIZE_LARGE
-	default_ammo = /datum/ammo/bullet/smartgun/m56_fpw
+	default_ammo = /datum/ammo/bullet/rifle/heavy
 	max_rounds = 75
 	gun_type = /obj/item/hardpoint/special/firing_port_weapon