Adds RSG immune back to MODsuits that lost it (#25669)

* Adds RSG immune to Dsquad MODsuits

* Updates string

* Adds trait to Gamma MODsuits for Sec and Medical

code/modules/mob/living/carbon/human/human_mob.dm

@@ -823,6 +823,9 @@
 	if(HAS_TRAIT(src, TRAIT_PIERCEIMMUNE))
 		. = FALSE
 
+	if(wear_suit && HAS_TRAIT(wear_suit, TRAIT_RSG_IMMUNE))
+		return FALSE
+
 	var/obj/item/organ/external/affecting = get_organ(target_zone)
 	var/fail_msg
 	if(!affecting)
@@ -831,8 +834,10 @@
 	else if(affecting.is_robotic())
 		. = FALSE
 		fail_msg = "That limb is robotic."
-	if(wear_suit && !HAS_TRAIT(wear_suit, TRAIT_PUNCTURE_IMMUNE) && piercing)
+
+	if(piercing)
 		return TRUE
+
 	if(target_zone == "head")
 		if((head?.flags & THICKMATERIAL) && !penetrate_thick)
 			. = FALSE