Adds a mech flare launcher, can be mounted on any mech.

code/game/mecha/equipment/weapons/weapons.dm

@@ -218,6 +218,24 @@
 
 /obj/item/mecha_parts/mecha_equipment/weapon/ballistic/missile_rack/Fire(atom/movable/AM, atom/target, turf/aimloc)
 	AM.throw_at(target,missile_range, missile_speed, chassis)
+	
+/obj/item/mecha_parts/mecha_equipment/weapon/ballistic/missile_rack/flare
+	name = "\improper BNI Flare Launcher"
+	icon_state = "mecha_flaregun"
+	projectile = /obj/item/device/flashlight/flare
+	fire_sound = 'sound/weapons/tablehit1.ogg'
+	auto_rearm = 1
+	fire_cooldown = 20
+	projectiles_per_shot = 1
+	projectile_energy_cost = 20
+	missile_speed = 1
+	missile_range = 15
+	required_type = /obj/mecha  //Why restrict it to just mining or combat mechs?
+	
+/obj/item/mecha_parts/mecha_equipment/weapon/ballistic/missile_rack/flare/Fire(atom/movable/AM, atom/target, turf/aimloc)
+	var/obj/item/device/flashlight/flare/fired = AM
+	fired.ignite()
+	..()
 
 /obj/item/mecha_parts/mecha_equipment/weapon/ballistic/missile_rack/explosive
 	name = "\improper SRM-8 missile rack"

code/game/objects/items/devices/flashlight.dm

@@ -199,6 +199,14 @@
 		src.force = on_damage
 		src.damtype = "fire"
 		processing_objects += src
+		
+/obj/item/device/flashlight/flare/proc/ignite() //Used for flare launchers.
+	on = !on
+	update_icon()
+	force = on_damage
+	damtype = "fire"
+	processing_objects += src
+	return 1
 
 /obj/item/device/flashlight/slime
 	gender = PLURAL

code/modules/research/mechfab_designs.dm

@@ -407,6 +407,12 @@
 	name = "Cable layer"
 	id = "mech_cable_layer"
 	build_path = /obj/item/mecha_parts/mecha_equipment/tool/cable_layer
+	
+/datum/design/item/mecha/flaregun
+	name = "Flare launcher"
+	id = "mecha_flare_gun"
+	build_path = /obj/item/mecha_parts/mecha_equipment/weapon/ballistic/missile_rack/flare
+	materials = list(DEFAULT_WALL_MATERIAL = 12500)
 
 /datum/design/item/mecha/sleeper
 	name = "Sleeper"