Consistency in ERT equipment, give ERT PDA's so they can be messaged privately

code/game/objects/items/devices/PDA/PDA.dm

@@ -208,6 +208,10 @@ var/global/list/obj/item/device/pda/PDAs = list()
 /obj/item/device/pda/geneticist
 	default_cartridge = /obj/item/weapon/cartridge/medical
 	icon_state = "pda-genetics"
+	
+/obj/item/device/pda/centcom
+	default_cartridge = /obj/item/weapon/cartridge/centcom
+	icon_state = "pda-h"
 
 
 // Special AI/pAI PDAs that cannot explode.

code/game/objects/items/devices/PDA/cart.dm

@@ -207,6 +207,24 @@
 	icon_state = "cart-h"
 	access_status_display = 1
 	access_security = 1
+	
+/obj/item/weapon/cartridge/centcom
+	name = "Value-PAK Cartridge"
+	desc = "Now with 200% more value!"
+	icon_state = "cart-c"
+	access_quartermaster = 1
+	access_janitor = 1
+	access_engine = 1
+	access_security = 1
+	access_medical = 1
+	access_reagent_scanner = 1
+	access_status_display = 1
+	access_atmos = 1
+	
+/obj/item/weapon/cartridge/centcom/New()
+	..()
+	spawn(5)
+		radio = new /obj/item/radio/integrated/beepsky(src)
 
 /obj/item/weapon/cartridge/syndicate
 	name = "Detomatix Cartridge"