Changes to the Atmos Watertank Backpack

code/game/objects/structures/crates_lockers/closets/secure/engineering.dm

@@ -39,7 +39,7 @@
 	new /obj/item/clothing/gloves/color/yellow(src)
 	new /obj/item/clothing/gloves/color/yellow(src)
 	new /obj/item/weapon/inducer(src)
-	new /obj/item/weapon/inducer(src)
+	new /obj/item/weapon/inducer(src)
 	for(var/i in 1 to 3)
 		new /obj/item/weapon/storage/toolbox/electrical(src)
 	for(var/i in 1 to 3)
@@ -88,7 +88,7 @@
 	new /obj/item/weapon/storage/toolbox/mechanical(src)
 	new /obj/item/weapon/tank/internals/emergency_oxygen/engi(src)
 	new /obj/item/device/analyzer(src)
-	new /obj/item/weapon/holosign_creator/engineering(src)
+	new /obj/item/weapon/holosign_creator/atmos(src)
 	new /obj/item/weapon/watertank/atmos(src)
 	new /obj/item/clothing/suit/fire/atmos(src)
 	new /obj/item/clothing/head/hardhat/atmos(src)

code/game/objects/structures/holosign.dm

@@ -65,6 +65,26 @@
 /obj/structure/holosign/barrier/engineering
 	icon_state = "holosign_engi"
 
+/obj/structure/holosign/barrier/atmos
+	name = "holo firelock"
+	desc = "A holographic barrier resembling a firelock. Though it does not prevent solid objects from passing through, gas is kept out."
+	icon_state = "holo_firelock"
+	density = FALSE
+	layer = ABOVE_MOB_LAYER
+	anchored = TRUE
+	CanAtmosPass = ATMOS_PASS_NO
+	layer = ABOVE_MOB_LAYER
+	alpha = 150
+
+/obj/structure/holosign/barrier/atmos/Initialize()
+	. = ..()
+	air_update_turf(TRUE)
+
+/obj/structure/holosign/barrier/atmos/Destroy()
+	var/turf/T = get_turf(src)
+	. = ..()
+	T.air_update_turf(TRUE)
+
 /obj/structure/holosign/barrier/cyborg
 	name = "Energy Field"
 	desc = "A fragile energy field that blocks movement. Excels at blocking lethal projectiles."