The M41 SAW is a fairly common Machine gun that improves attack speed, burst cycles, and movement speed. While slighlty reducing ammo efficiency the saw does seem to provide more of a damage boost then the MMG (though its not been tested.)
-increases damage per second more then the MMG. (not tested)
-Only machine gun to increase movement speed.
-Does not negatively affect movement speed like the other two machine guns.
-Reduces ammo efficiency by adding more shots in the air at once.(Since increasing attack speed increases the ammount of bullets in the air, once the zombie is killed all other bullets on track to the target are wasted.)