changed alien neurotoxin to bio type projectile (which means it's stopped by protective gear like biosuits), fixed a runtime

Signed-off-by: Cael_Aislinn <cael_aislinn@yahoo.com.au>

code/modules/projectiles/projectile.dm

@@ -36,7 +36,7 @@
 	var/damage = 10
 	var/damage_type = BRUTE //BRUTE, BURN, TOX, OXY, CLONE are the only things that should be in here
 	var/nodamage = 0 //Determines if the projectile will skip any damage inflictions
-	var/flag = "bullet" //Defines what armor to use when it hits things.  Must be set to bullet, laser, energy,or bomb
+	var/flag = "bullet" //Defines what armor to use when it hits things.  Must be set to bullet, laser, energy,or bomb	//Cael - bio and rad are also valid
 	var/projectile_type = "/obj/item/projectile"
 	var/kill_count = 50 //This will de-increment every process(). When 0, it will delete the projectile.
 		//Effects

code/modules/projectiles/projectile/special.dm

@@ -122,4 +122,12 @@
 		else if (istype(target, /mob/living/carbon/))
 			M.show_message("\blue The radiation beam dissipates harmlessly through your body.")
 		else
-			return 1
+			return 1
+
+/obj/item/projectile/neurotoxin
+	name = "neurotoxin"
+	icon_state = "toxin"
+	damage = 5
+	damage_type = TOX
+	weaken = 5
+	flag = "bio"