M4 Synthetic PMC 'armor' changes p1 (#4867)

# About the pull request

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this is #4758 but atomized, this one only changes code, next one will
only change sprite. the conflicts involved with sprites was quite
ridiculous



Basically M4 PMC Synthetic 'armor' stated it offered 'maximum
protection' even though it offers quite literally 0. Furthermore this
complete lack of protection does not constitute the 20% slowdown netted.

So I'm fixing the description to state clearly that there is NO ARMOR
OFFERED and furthermore, lowering it to a 10% slowdown(Justified by
having 1 extra storage space?). I think this is a step in teh right
direction for now.

10% comes from a new category called SUPERLIGHT which will be used for
this only atm. May go to other stuff later.
# Explain why it's good for the game
Description should match what an item offers and not be misleading. If
it says it has armor - it should have armor. If it isn't gonna have
armor, it shouldn't say so.

Next, 20% slowdown is A HUGE price for 1 single storage slot. Its almost
ridiculous. Hopefully 10% is better :)
# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

Put screenshots and videos here with an empty line between the
screenshots and the `<details>` tags.

</details>


# Changelog
:cl:
add: SUPERLIGHT armor category.
balance: M4 Synthetic Armor slows by 10% to justify having 1 extra
storage slot.
spellcheck: Clarifies M4 Synthetic Armor description that it does not
have any armor whatsoever.
/:cl:

code/__DEFINES/conflict.dm

@@ -109,6 +109,7 @@
 #define SHOES_SLOWDOWN -1
 
 #define SLOWDOWN_ARMOR_NONE 0
+#define SLOWDOWN_ARMOR_SUPER_LIGHT 0.10
 #define SLOWDOWN_ARMOR_VERY_LIGHT 0.20
 #define SLOWDOWN_ARMOR_LIGHT 0.35
 #define SLOWDOWN_ARMOR_MEDIUM 0.55

code/modules/clothing/suits/marine_armor.dm

@@ -1107,8 +1107,8 @@
 	item_state_slots = list(WEAR_JACKET = "pmc_sniper")
 
 /obj/item/clothing/suit/storage/marine/veteran/pmc/light/synth
-	name = "\improper M4 synthetic PMC armor"
-	desc = "A modification of the standard Armat Systems M3 armor. This variant was designed for PMC Support Units in the field, offering protection and storage while not restricting movement."
+	name = "\improper M4 Synthetic PMC armor"
+	desc = "A serious modification of the standard Armat Systems M3 armor. This variant was designed for PMC Support Units in the field, with every armor insert removed. It's designed with the idea of a high speed lifesaver in mind."
 	time_to_unequip = 0.5 SECONDS
 	time_to_equip = 1 SECONDS
 	armor_melee = CLOTHING_ARMOR_NONE
@@ -1120,6 +1120,7 @@
 	armor_rad = CLOTHING_ARMOR_NONE
 	armor_internaldamage = CLOTHING_ARMOR_NONE
 	storage_slots = 3
+	slowdown = SLOWDOWN_ARMOR_SUPER_LIGHT
 
 /obj/item/clothing/suit/storage/marine/veteran/pmc/light/synth/Initialize()
 	flags_atom |= NO_NAME_OVERRIDE

maps/map_files/LV624/hydro/30.destroyed.dmm

@@ -164,8 +164,8 @@
 /area/lv624/lazarus/hydroponics)
 "mK" = (
 /obj/item/clothing/suit/storage/marine/veteran/pmc/light/synth{
-	desc = "A modification of the standard Armat Systems M3 armor. This variant was designed for PMC Support Units in the field, offering protection and storage while not restricting movement. This set seems damaged...";
-	name = "damaged M4 synthetic PMC armor";
+	desc = "A serious modification of the standard Armat Systems M3 armor. This variant was designed for PMC Support Units in the field, with every armor insert removed. It's designed with the idea of a high speed lifesaver in mind. This set seems damaged...";
+	name = "damaged M4 Synthetic PMC armor";
 	pixel_x = -5;
 	pixel_y = -5
 	},