User blog comment:Damac1214/"The Replacer" Trailer released + Double XP Weekend announced/@comment-5243704-20130124014629/@comment-124.195.196.108-20130124041603

Oh god, have you any idea what Double Tap 2.0 does. It is the most useful perk after Juggernog. I'd say it is equal to Juggernog. Double Tap 2.0 converts one bullet to two bullets in midair, so it gets double damage. Now combine that with Pack a Puch.