The Gage Weapon Pack #02 Add-on for PAYDAY 2 has 10 achievements.
Kill a Cloaker with a knife.
Kill a Bulldozer in a knife fight.
You finally got what you were asking for!
On day 2 of the Big Oil job, complete the heist with the last engine being correct on the OVERKILL difficulty or above.
On the Nightclub job, kill 50 law enforcers using your fists.
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 jump kicking Cloaker using any shotgun.
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.