SWAT perk weapon ideas

Here's some ideas I thought would be a nice edition for the SWAT perk.
Tell me if you like any and/or have a tier ranking ideas for my list :)
Special Equipment:
Riot Shield (Drassel's idea)
Knife/Melee weapon:
-A retractable stun baton
-A Kbar with a stun gun for the stock
-A Shock knife
-Zap knuckles
Pistol (Tier 1)
-Taser Gun with a lethal dose of electricity
-Five-Seven
-P200
-Glock 18/20
Shotgun (Tier 2)
-Xm1014
-Benelli M2 (Maybe with solid rounds)
SMGs (Tier 2)
-MP5
-UMP45
-Thompson
-P90
-Bizon SMG
Rifles (Tier 3)
-Galil AR
-M4 Carbine Rifle
LMGs (Tier 4)
-M249
-M16A2 automatic rifle with 100-round Beta-C magazine (http://ift.tt/1RH5YxV)
-Type 95 LMG
Grenade
-Tear Gas (Pretty much like the medic nade, but doesn't heal players)
-Smoke Grenade (A smoke screen which breaks zed's line of sight and confuses them as they try to reach out of the smoke)
-Flashbang (Blinds/Stuns zed's for a short amount of time)
-Decoy Grenade (Makes sounds which attracts zeds or distracts them. Could be used to lure a group of zeds to a spot, useful for making traps, especially with a demolition teammate ;) )

Does anyone know what will the perk be like? Will it utilize various firearms from S.W.A.T's arsenal or will it rely on SMGs?
I've just realised that no perk specializes in a machine gun branch, so how about fitting a SWAT with an LMG for tier 4?

SWAT perk weapon ideas