Snow Legions will now properly infect dead mobs + New snow legion regenerative cores

code/modules/mining/equipment/regenerative_core.dm

@@ -157,3 +157,33 @@
 /obj/item/organ/regenerative_core/legion/preserved(implanted = 0)
 	..()
 	desc = "[src] has been stabilized. It is preserved, allowing you to use it to heal completely without danger of decay."
+
+
+// Snow Legion Core
+
+/obj/item/organ/regenerative_core/legion/snow
+	desc = "A strangely hard snowball that crackles with power. It can be used to heal quickly, but it will rapidly decay into uselessness. Radiation found in active space installments may slow its healing effects."
+	icon_state = "slegion_soul"
+
+/obj/item/organ/regenerative_core/legion/snow/Initialize(mapload)
+	. = ..()
+	update_appearance(UPDATE_ICON)
+
+/obj/item/organ/regenerative_core/legion/snow/update_icon_state()
+	. = ..()
+	icon_state = inert ? "slegion_soul_inert" : "slegion_soul"
+	for(var/datum/action/A as anything in actions)
+		A.build_all_button_icons()
+
+/obj/item/organ/regenerative_core/snow/update_overlays()
+	. = ..()
+	if(!inert && !preserved)
+		. += "slegion_soul_crackle"
+
+/obj/item/organ/regenerative_core/legion/snow/go_inert()
+	..()
+	desc = "[src] has become inert. It has decayed, and is completely useless."
+
+/obj/item/organ/regenerative_core/legion/snow/preserved(implanted = 0)
+	..()
+	desc = "[src] has been stabilized. It is preserved, allowing you to use it to heal completely without danger of decay."

code/modules/mob/living/simple_animal/hostile/mining_mobs/hivelord.dm

@@ -126,7 +126,7 @@
 	robust_searching = 1
 	var/dwarf_mob = FALSE
 	var/mob/living/carbon/human/stored_mob
-
+	var/snow_legion = FALSE
 /mob/living/simple_animal/hostile/asteroid/hivelord/legion/random/Initialize(mapload)
 	. = ..()
 	if(prob(5))
@@ -189,7 +189,7 @@
 	stat_attack = UNCONSCIOUS
 	robust_searching = 1
 	var/can_infest_dead = FALSE
-
+	var/snow_legion = FALSE
 // Snow Legion
 /mob/living/simple_animal/hostile/asteroid/hivelord/legion/snow
 	name = "snow legion"
@@ -200,8 +200,10 @@
 	icon_aggro = "snowlegion_alive"
 	icon_dead = "snowlegion"
 	crusher_loot = /obj/item/crusher_trophy/legion_skull
-	loot = list(/obj/item/organ/regenerative_core/legion)
+	loot = list(/obj/item/organ/regenerative_core/legion/snow)
 	brood_type = /mob/living/simple_animal/hostile/asteroid/hivelordbrood/legion/snow
+	snow_legion = TRUE
+
 
 // Snow Legion skull
 /mob/living/simple_animal/hostile/asteroid/hivelordbrood/legion/snow
@@ -212,6 +214,8 @@
 	icon_living = "snowlegion_head"
 	icon_aggro = "snowlegion_head"
 	icon_dead = "snowlegion_head"
+	snow_legion = TRUE
+	can_infest_dead = TRUE
 
 /mob/living/simple_animal/hostile/asteroid/hivelordbrood/legion/Life(seconds_per_tick = SSMOBS_DT, times_fired)
 	if(isturf(loc))
@@ -225,6 +229,8 @@
 	var/mob/living/simple_animal/hostile/asteroid/hivelord/legion/L
 	if(H.dna.check_mutation(DWARFISM)) //dwarf legions aren't just fluff!
 		L = new /mob/living/simple_animal/hostile/asteroid/hivelord/legion/dwarf(H.loc)
+	else if(snow_legion)
+		L = new /mob/living/simple_animal/hostile/asteroid/hivelord/legion/snow(H.loc)
 	else
 		L = new(H.loc)
 	visible_message(span_warning("[L] staggers to [L.p_their()] feet!"))
@@ -234,6 +240,8 @@
 	H.forceMove(L)
 	qdel(src)
 
+
+
 //Advanced Legion is slightly tougher to kill and can raise corpses (revive other legions)
 /mob/living/simple_animal/hostile/asteroid/hivelord/legion/advanced
 	stat_attack = DEAD