buffs the bulldog shotgun because it kind of stinks

code/modules/projectiles/ammunition/ballistic/shotgun.dm

@@ -8,6 +8,11 @@
 	projectile_type = /obj/item/projectile/bullet/shotgun_slug
 	materials = list(/datum/material/iron=4000)
 
+/obj/item/ammo_casing/shotgun/syndie
+	name = "syndicate shotgun slug"
+	desc = "An illegal type of ammunition used by the syndicate for their bulldog shotguns. Hopefully you're not the one on the receiving end."
+	projectile_type = /obj/item/projectile/bullet/shotgun_slug/syndie
+
 /obj/item/ammo_casing/shotgun/beanbag
 	name = "beanbag slug"
 	desc = "A weak beanbag slug for riot control."

code/modules/projectiles/boxes_magazines/external/shotgun.dm

@@ -16,9 +16,9 @@
 	ammo_type = /obj/item/ammo_casing/shotgun/stunslug
 
 /obj/item/ammo_box/magazine/m12g/slug
-	name = "shotgun magazine (12g slugs)"
+	name = "shotgun magazine (12g syndicate slugs)"
 	icon_state = "m12gb"    //this may need an unique sprite
-	ammo_type = /obj/item/ammo_casing/shotgun
+	ammo_type = /obj/item/ammo_casing/shotgun/syndie
 
 /obj/item/ammo_box/magazine/m12g/dragon
 	name = "shotgun magazine (12g dragon's breath)"

code/modules/projectiles/projectile/bullets/shotgun.dm

@@ -4,6 +4,10 @@
 	sharpness = SHARP_POINTY
 	wound_bonus = -30
 
+/obj/item/projectile/bullet/shotgun_slug/syndie
+	name = "12g syndicate shotgun slug"
+	damage = 60
+
 /obj/item/projectile/bullet/shotgun_beanbag
 	name = "beanbag slug"
 	damage = 5