Alternative nuclear deployment method

code/game/machinery/nuclearbomb.dm

@@ -629,3 +629,88 @@ GLOBAL_VAR_INIT(bomb_set, FALSE)
 
 	decrypting = FALSE
 	announce_to_players()
+
+/obj/structure/machinery/nuclearbomb/ADM
+	name = "\improper Tactical Atomic Demolition Munition"
+	desc = "Commonly referred to as a 'nuclear landmine' and colloquially as 'Heinz' for its cylindrical shape. The Mk-214 TADM is designed for discrete deployment in an area of operations to completely clear a several-mile radius around the blast point."
+	icon = 'icons/obj/items/marine-items.dmi'
+	icon_state = "adm"
+	pixel_x = 0
+	var/source_type = /obj/item/ADM
+
+/obj/structure/machinery/nuclearbomb/ADM/attackby(obj/item/item, mob/user)
+	if(HAS_TRAIT(item, TRAIT_TOOL_MULTITOOL))
+		if(user.action_busy)
+			return
+		if(!skillcheck(user, SKILL_ENGINEER, SKILL_ENGINEER_NOVICE))
+			to_chat(user, SPAN_WARNING("You do not know how to pack up [src] using a security tuner..."))
+			return
+		user.visible_message(SPAN_NOTICE("[user] starts packing up [src]."), \
+			SPAN_NOTICE("You begin packing up [src]..."))
+		playsound(loc, 'sound/items/Crowbar.ogg', 25, 1)
+		if(do_after(user, 5 SECONDS, INTERRUPT_NO_NEEDHAND, BUSY_ICON_FRIENDLY, src))
+			collapse(usr)
+		else
+			to_chat(user, SPAN_WARNING("You stop packing up [src]."))
+	return ..()
+
+/obj/structure/machinery/nuclearbomb/ADM/proc/collapse(mob/living/carbon/human/user)
+	var/obj/item/ADM = new source_type(loc)
+	if(istype(user))
+		user.visible_message(SPAN_NOTICE("[user] packs up [src]."),
+			SPAN_NOTICE("You pack up [src]."))
+		user.put_in_active_hand(ADM)
+	qdel(src)
+
+// ADM in hands
+/obj/item/ADM
+	name = "Mk-214 Tactical Atomic Demolition Munition"
+	desc = "A packed-up TADM awaiting deployment to bring some serious pain. Includes the console and arming keys for the warhead."
+	w_class = SIZE_LARGE
+	flags_equip_slot = SLOT_BACK
+	flags_item = SMARTGUNNER_BACKPACK_OVERRIDE
+	icon_state = "admpacked"
+	item_state = "admpacked"
+	icon = 'icons/obj/items/marine-items.dmi'
+
+/obj/item/ADM/attack_self(mob/user)
+	. = ..()
+
+	if(SSinterior.in_interior(user))
+		to_chat(usr, SPAN_WARNING("It's too cramped in here to deploy \a [src]."))
+		return
+	var/turf/T = get_step(user, user.dir)
+	var/blocked = FALSE
+	for(var/obj/O in T)
+		if(O.density)
+			blocked = TRUE
+			break
+	for(var/mob/M in T)
+		blocked = TRUE
+		break
+	if(istype(T, /turf/open))
+		var/turf/open/floor = T
+		if(!floor.allow_construction)
+			to_chat(user, SPAN_WARNING("You cannot deploy \a [src] here, find a more secure surface!"))
+			return FALSE
+	else
+		blocked = TRUE
+	if(blocked)
+		to_chat(usr, SPAN_WARNING("You need a clear, open area to deploy \a [src], something is blocking the way in front of you!"))
+		return
+
+	if(usr.action_busy)
+		return
+	user.visible_message(SPAN_NOTICE("[user] begins deploying [src]."),
+			SPAN_NOTICE("You begin deploying [src]."))
+	playsound(loc, list('sound/handling/armorequip_1.ogg', 'sound/handling/armorequip_2.ogg'), 25, 1)
+	if(!do_after(user, 5 SECONDS, INTERRUPT_ALL|BEHAVIOR_IMMOBILE, BUSY_ICON_BUILD))
+		to_chat(user, SPAN_WARNING("You were interrupted."))
+		return
+	user.visible_message(SPAN_NOTICE("[user] has finished deploying [src]."),
+			SPAN_NOTICE("You finish deploying [src]."))
+
+	var/obj/structure/machinery/nuclearbomb/ADM/planted = new(user.loc)
+	planted.update_icon()
+	planted.forceMove(get_turf(T))
+	qdel(src)