Xenomorph Balancing Act 1.1

Simple balances and fixes due to a recent event.

- Changed plasma cost for laying eggs, from 75 to 200.

- Changed Agony damage of neurotoxin, from 80 to 60.

- Finally fixed the fact that xenomorphs cannot see in the dark. Xenomorphs can now see turfs and mobs, but lose some range when in the dark.

- Changed ability name Gut to Slaughter, to more accurately describe what it does.

code/modules/projectiles/projectile/energy.dm

@@ -152,7 +152,7 @@
 	icon_state = "neurotoxin"
 	damage = 5
 	damage_type = BIOACID
-	agony = 80
+	agony = 60 //CHOMPedit lowered agony damage
 	check_armour = "bio"
 	armor_penetration = 25	// It's acid-based