diff --git a/code/__DEFINES/conflict.dm b/code/__DEFINES/conflict.dm
index 09be4793c552..87d437fe1649 100644
--- a/code/__DEFINES/conflict.dm
+++ b/code/__DEFINES/conflict.dm
@@ -200,6 +200,7 @@
 
 // human armor
 #define CLOTHING_ARMOR_NONE 0
+#define CLOTHING_ARMOR_VERYLOW 5
 #define CLOTHING_ARMOR_LOW 10
 #define CLOTHING_ARMOR_MEDIUMLOW 15
 #define CLOTHING_ARMOR_MEDIUM 20
diff --git a/code/modules/clothing/suits/marine_armor.dm b/code/modules/clothing/suits/marine_armor.dm
index ab62ea782a09..982d07ad2aeb 100644
--- a/code/modules/clothing/suits/marine_armor.dm
+++ b/code/modules/clothing/suits/marine_armor.dm
@@ -510,7 +510,7 @@ var/list/squad_colors_chat = list(rgb(230,125,125), rgb(255,230,80), rgb(255,150
 	armor_melee = CLOTHING_ARMOR_MEDIUMLOW
 	armor_bullet = CLOTHING_ARMOR_MEDIUMLOW
 	armor_bomb = CLOTHING_ARMOR_MEDIUM
-	armor_bio = CLOTHING_ARMOR_MEDIUMHIGH
+	armor_bio = CLOTHING_ARMOR_MEDIUMLOW
 	armor_rad = CLOTHING_ARMOR_MEDIUMHIGH
 	armor_internaldamage = CLOTHING_ARMOR_LOW
 	storage_slots = 2
@@ -549,7 +549,7 @@ var/list/squad_colors_chat = list(rgb(230,125,125), rgb(255,230,80), rgb(255,150
 	armor_bullet = CLOTHING_ARMOR_HIGH
 	armor_energy = CLOTHING_ARMOR_LOW
 	armor_bomb = CLOTHING_ARMOR_LOW
-	armor_bio = CLOTHING_ARMOR_NONE
+	armor_bio = CLOTHING_ARMOR_VERYLOW
 	armor_rad = CLOTHING_ARMOR_NONE
 	armor_internaldamage = CLOTHING_ARMOR_MEDIUM
 	storage_slots = 1
@@ -589,7 +589,7 @@ var/list/squad_colors_chat = list(rgb(230,125,125), rgb(255,230,80), rgb(255,150
 
 /obj/item/clothing/suit/storage/marine/heavy
 	name = "\improper M3-EOD pattern heavy armor"
-	desc = "A heavier version of the standard M3 pattern armor, the armor is primarily designed to withstand ballistic, explosive, and internal damage, with the drawback of increased bulk and thus reduced movement speed, alongside little additional protection from standard blunt force impacts and none from biological threats."
+	desc = "A heavier version of the standard M3 pattern armor, the armor is primarily designed to withstand ballistic, explosive, and internal damage, with the drawback of increased bulk and thus reduced movement speed, alongside little additional protection from standard blunt force impacts and biological threats."
 	desc_lore = "This configuration of the iconic armor was developed during the Canton War in 2160 between the UPP and USCM - Designed in response to a need for higher protection for ComTechs assigned as EODs during the conflict, this is the pinnacle of protection for your average marine. The shoulders and kneepads have both been expanded upon heavily, covering up the arteries on each limb. A special spall liner was developed for this suit, with the same technology being used in the M70 Flak Jacket being developed at the same time."
 	specialty = "\improper M3-EOD pattern"
 	icon_state = "H1"
@@ -597,7 +597,7 @@ var/list/squad_colors_chat = list(rgb(230,125,125), rgb(255,230,80), rgb(255,150
 	armor_melee = CLOTHING_ARMOR_MEDIUMHIGH
 	armor_bullet = CLOTHING_ARMOR_HIGHPLUS
 	armor_bomb = CLOTHING_ARMOR_HIGHPLUS
-	armor_bio = CLOTHING_ARMOR_MEDIUM
+	armor_bio = CLOTHING_ARMOR_MEDIUMHIGH
 	armor_rad = CLOTHING_ARMOR_MEDIUM
 	armor_internaldamage = CLOTHING_ARMOR_MEDIUMHIGH
 	storage_slots = 2
diff --git a/code/modules/mob/living/carbon/xenomorph/Xenomorph.dm b/code/modules/mob/living/carbon/xenomorph/Xenomorph.dm
index f1d03d6507b1..83bebd0107f2 100644
--- a/code/modules/mob/living/carbon/xenomorph/Xenomorph.dm
+++ b/code/modules/mob/living/carbon/xenomorph/Xenomorph.dm
@@ -243,7 +243,7 @@
 	var/list/tackle_counter
 	var/evolving = FALSE // Whether the xeno is in the process of evolving
 	/// The damage dealt by a xeno whenever they take damage near someone
-	var/acid_blood_damage = 20
+	var/acid_blood_damage = 25
 	var/nocrit = FALSE
 	var/deselect_timer = 0 // Much like Carbon.last_special is a short tick record to prevent accidental deselects of abilities
 	var/got_evolution_message = FALSE
diff --git a/code/modules/mob/living/carbon/xenomorph/damage_procs.dm b/code/modules/mob/living/carbon/xenomorph/damage_procs.dm
index f3443535a5f2..c26e38202200 100644
--- a/code/modules/mob/living/carbon/xenomorph/damage_procs.dm
+++ b/code/modules/mob/living/carbon/xenomorph/damage_procs.dm
@@ -272,7 +272,7 @@
 				SPAN_DANGER("You are splattered with sizzling blood! IT BURNS!"))
 				if(prob(60) && !victim.stat && victim.pain.feels_pain)
 					INVOKE_ASYNC(victim, TYPE_PROC_REF(/mob, emote), "scream") //Topkek
-				victim.take_limb_damage(0, dmg["damage"]) //Sizzledam! This automagically burns a random existing body part.
+				victim.apply_armoured_damage(dmg["damage"], ARMOR_BIO, BURN) //Sizzledam! This automagically burns a random existing body part.
 				victim.add_blood(get_blood_color(), BLOOD_BODY)
 				acid_splash_last = world.time
 				handle_blood_splatter(get_dir(src, victim), 1 SECONDS)