Double Tap Root Beer

Double Tap Root Beer is a Perk-a-Cola featured in Call of Duty: World at War, Call of Duty: Black Ops, Call of Duty: Black Ops II and Call of Duty: Black Ops III in the Zombies game mode. Double Tap increases the rate of fire (and effectively increasing recoil by the same amount, due to the weapons having less time to settle between shots) of all weapons by 33% and doubles bullet damage (2.0 version only). It also allows the player to lay down equipment such as Claymores faster and makes players operate bolt-action rifles, pump-action shotguns (as well as re-chambering them), and Wonder Weapons such as the Wrath of the Ancients noticeably quicker, as well as raising the firecap for semi-automatic weapons. It mirrors the effects of Double Tap.