Warzone and MW3 M4 best loadout and attachments
Optic: Slimline Pro or Hybrid Firepoint.
Stock: Corio Precio Factory.
Rear Grip: Phantom Grip.
Muzzle: FTac Castle Comp.
Barrel: Hightower 20" Barrel.
Best M4 Warzone class: Perks & equipment
Base Perk 1: Overkill.
Base Perk 2: Bomb Squad.
Bonus Perk: Resupply.
Ultimate Perk: High Alert.
Lethal: Semtex.
Tactical Equipment: Flash Grenades.