35 enemies killed with the pistol.
Very early in the game you will obtain the pistol. Use it on 35 enemies. Aim for the head to preserve ammo and to gain head shot kills for the achievement based on those. You can upgrade the gun with salvage at a camp to make it better. To select this weapon, press .
Note: You cannot reload checkpoints to gain extra kills towards your stats. These must all be done on unique enemies.