The Gage Weapon Pack #02 Add-on for PAYDAY 2 has 10 achievements.
Kill a jump kicking Cloaker using any shotgun.
Kill a Cloaker with a knife.
Kill a Bulldozer in a knife fight.
On the Nightclub job, kill 50 law enforcers using your fists.
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On day 2 of the Big Oil job, complete the heist with the last engine being correct on the OVERKILL difficulty or above.
Kill 10 enemies in a row using any light machine gun without releasing the trigger.
Kill 220 enemies in a single day of a heist using any light machine gun.
Kill a charging Cloaker using the Deagle pistol.
Kill 15 FBI SWAT and FBI Heavy SWAT units with a knife while at 25% or less health on the OVERKILL difficulty or above.