Adds a new BEPIS Major Reward, "Australicus Security Protocols" (#48600)

* The hero returns alive.

* Initial commit, boomerang batons and outback firing pins.

* Australicus is the lore in the game already, so #@$! it we'll pretend like #lore_general exists

* Name tweak.

* Fixes boomerang name, Inhands, accidently included a leftover sprite.

code/game/objects/items/stunbaton.dm

@@ -250,3 +250,46 @@
 		QDEL_NULL(sparkler)
 	return ..()
 
+/obj/item/melee/baton/boomerang
+	name = "\improper OZtek Boomerang"
+	desc = "A device invented in 2486 for the great Space Emu War by the confederacy of Australicus, these high-tech boomerangs also work exceptionally well at stunning crewmembers. Just be careful to catch it when thrown!"
+	throw_speed = 1
+	icon_state = "boomerang"
+	item_state = "boomerang"
+	force = 5
+	throwforce = 5
+	throw_range = 5
+	hitcost = 2000
+	throw_hit_chance = 99  //Have you prayed today?
+	custom_materials = list(/datum/material/iron = 10000, /datum/material/glass = 4000, /datum/material/silver = 10000, /datum/material/gold = 2000)
+
+/obj/item/melee/baton/boomerang/throw_at(atom/target, range, speed, mob/thrower, spin=1, diagonals_first = 0, datum/callback/callback, force)
+	if(turned_on)
+		if(ishuman(thrower))
+			var/mob/living/carbon/human/H = thrower
+			H.throw_mode_off() //so they can catch it on the return.
+	return ..()
+
+/obj/item/melee/baton/boomerang/throw_impact(atom/hit_atom, datum/thrownthing/throwingdatum)
+	if(turned_on)
+		var/caught = hit_atom.hitby(src, FALSE, FALSE, throwingdatum=throwingdatum)
+		if(ishuman(hit_atom) && !caught && prob(throw_hit_chance))//if they are a carbon and they didn't catch it
+			baton_effect(hit_atom)
+		if(thrownby && !caught)
+			sleep(1)
+			if(!QDELETED(src))
+				throw_at(thrownby, throw_range+2, throw_speed, null, TRUE)
+	else
+		return ..()
+
+
+/obj/item/melee/baton/boomerang/update_icon()
+	if(turned_on)
+		icon_state = "[initial(icon_state)]_active"
+	else if(!cell)
+		icon_state = "[initial(icon_state)]_nocell"
+	else
+		icon_state = "[initial(icon_state)]"
+
+/obj/item/melee/baton/boomerang/loaded //Same as above, comes with a cell.
+	preload_cell_type = /obj/item/stock_parts/cell/high