Need More Spots Up Front Achievement
Need More Spots Up Front35
Dismember 250 Limbs
Dismember limbs is something that comes natural in zombie games. Your best weapon of choice for this would be getting the fire axe. The fire axe will sever an arm in one shot, a head it one shot, and legs in two. Heads do count toward this achievement as a limb.
Remember that these stack through deaths, restarted levels, and playthroughs.