Double Tap is a perk featured in every map, except Anstieg. It costs 2000 points to buy, and increases the firing speed of the players weapons by about 1/3 times faster, (If single shot such as the ballistic knife or panzershrek, no effect.)
Pro's- good for repeater arms, such as the k98k or trench gun, and good for slow auto weapons on later rounds.
Con's- Increases speed of all weapons except single shot, so is very bad on low ammo or small magazine weapons.
Double Tap perk-a-cola machine
A player drinking double tap perk-a-cola