diff --git a/modular_ss220/maps220/code/mobs.dm b/modular_ss220/maps220/code/mobs.dm
index cf2a0112103f..0106eb689fe5 100644
--- a/modular_ss220/maps220/code/mobs.dm
+++ b/modular_ss220/maps220/code/mobs.dm
@@ -662,6 +662,12 @@
 	var/alert_cooldown = 3 SECONDS
 	var/alert_cooldown_time
 
+
+/mob/living/simple_animal/hostile/blackmesa/Initialize(mapload)
+	. = ..()
+	add_language("Sol Common")
+	default_language = GLOB.all_languages["Sol Common"]
+
 /mob/living/simple_animal/hostile/blackmesa/Aggro()
 	if(alert_sounds)
 		if(world.time > alert_cooldown_time)
@@ -855,7 +861,7 @@
 	speak_chance = 1
 	speak_emote = list("growls")
 	speed = 1
-	move_to_delay = 3.5
+	move_to_delay = 3.8
 	emote_taunt = list("growls", "snarls", "grumbles")
 	taunt_chance = 100
 	melee_damage_lower = 15
@@ -877,7 +883,6 @@
 	icon_state = "scientist_zombie"
 	icon_living = "scientist_zombie"
 	loot = list(/obj/effect/gibspawner/human)
-	del_on_death = TRUE
 
 /mob/living/simple_animal/hostile/blackmesa/xen/headcrab_zombie/guard
 	name = "zombified guard"
@@ -887,7 +892,6 @@
 	maxHealth = 120 // Armor!
 	health = 120
 	loot = list(/obj/effect/gibspawner/human)
-	del_on_death = TRUE
 
 /mob/living/simple_animal/hostile/blackmesa/xen/headcrab_zombie/hecu
 	name = "zombified marine"
@@ -897,7 +901,6 @@
 	maxHealth = 150 // More armor!
 	health = 150
 	loot = list(/obj/effect/gibspawner/human)
-	del_on_death = TRUE
 
 /mob/living/simple_animal/hostile/blackmesa/xen/headcrab_zombie/hev
 	name = "zombified hazardous environment specialist"
@@ -922,7 +925,7 @@
 		'modular_ss220/aesthetics_sounds/sound/mobs/zombies/hzv13.ogg',
 		'modular_ss220/aesthetics_sounds/sound/mobs/zombies/hzv14.ogg',
 	)
-	del_on_death = TRUE
+
 
 //Bullsquid
 /mob/living/simple_animal/hostile/blackmesa/xen/bullsquid
@@ -946,6 +949,7 @@
 	melee_damage_lower = 15
 	melee_damage_upper = 15
 	ranged = TRUE
+	del_on_death = FALSE
 	retreat_distance = 5
 	minimum_distance = 5
 	dodging = TRUE
@@ -1000,6 +1004,7 @@
 	melee_damage_lower = 20
 	melee_damage_upper = 20
 	rapid_melee = 2
+	del_on_death = FALSE
 	butcher_results = list(/obj/item/reagent_containers/food/snacks/monstermeat/xenomeat = 3)
 	attack_sound = 'sound/weapons/bite.ogg'
 	gold_core_spawnable = HOSTILE_SPAWN
@@ -1038,6 +1043,7 @@
 	speed = 2
 	ranged = TRUE
 	dodging = TRUE
+	del_on_death = FALSE
 	harm_intent_damage = 15
 	melee_damage_lower = 10
 	melee_damage_upper = 10
@@ -1087,7 +1093,6 @@
 	attacktext = "lathes"
 	attack_sound = 'sound/weapons/punch1.ogg'
 	status_flags = NONE
-	del_on_death = TRUE
 	wander = TRUE
 	loot = list(/obj/effect/gibspawner/xeno, /obj/item/stack/ore/bluespace_crystal/refined = 30, /obj/item/card/id/xen_key, /obj/item/gun/energy/wormhole_projector)
 	flying = TRUE
diff --git a/modular_ss220/maps220/code/objects.dm b/modular_ss220/maps220/code/objects.dm
index 59aa172db275..a42859388653 100644
--- a/modular_ss220/maps220/code/objects.dm
+++ b/modular_ss220/maps220/code/objects.dm
@@ -582,6 +582,7 @@
 	faction = list("xen")
 	tts_seed = "Vortiger"
 	gold_core_spawnable = NO_SPAWN
+	del_on_death = TRUE
 
 /mob/living/simple_animal/hostile/blackmesa/xen/update_overlays()
 	. = ..()
@@ -627,7 +628,7 @@
 	if(!ismob(entered_atom))
 		return
 	var/mob/living/simple_animal/hostile/blackmesa/xen/entered_xen_mob = entered_atom
-	if(!entered_xen_mob.can_be_shielded)
+	if(!entered_xen_mob)
 		return
 	register_mob(entered_xen_mob)
 
@@ -645,6 +646,14 @@
 	RegisterSignal(created_beam, COMSIG_PARENT_QDELETING, PROC_REF(beam_died), override = TRUE)
 	RegisterSignal(mob_to_register, COMSIG_PARENT_QDELETING, PROC_REF(mob_died), override = TRUE)
 
+/obj/structure/xen_pylon/proc/beam_died(datum/beam/beam_to_kill)
+	SIGNAL_HANDLER
+	for(var/mob/living/simple_animal/hostile/blackmesa/xen/iterating_mob as anything in shielded_mobs)
+		// if(shielded_mobs[iterating_mob] == beam_to_kill)
+		iterating_mob.lose_shield()
+		shielded_mobs[iterating_mob] = null
+		shielded_mobs -= iterating_mob
+
 /obj/structure/xen_pylon/proc/mob_died(atom/movable/source, force)
 	SIGNAL_HANDLER
 	var/datum/beam/beam = shielded_mobs[source]
@@ -652,14 +661,6 @@
 	shielded_mobs[source] = null
 	shielded_mobs -= source
 
-/obj/structure/xen_pylon/proc/beam_died(datum/beam/beam_to_kill)
-	SIGNAL_HANDLER
-	for(var/mob/living/simple_animal/hostile/blackmesa/xen/iterating_mob as anything in shielded_mobs)
-		if(shielded_mobs[iterating_mob] == beam_to_kill)
-			iterating_mob.lose_shield()
-			shielded_mobs[iterating_mob] = null
-			shielded_mobs -= iterating_mob
-
 /obj/structure/xen_pylon/Destroy()
 	for(var/mob/living/simple_animal/hostile/blackmesa/xen/iterating_mob as anything in shielded_mobs)
 		iterating_mob.lose_shield()