Mechanic

Appearence
The only diferance from the Engineer zombie is its helmet,clothes and weapon

Weapon
Air Gun fires a stream of Nuts and Bolts at an extremely fast rate.

Upgrades
Better Air Compression - Reduces the reload speed of Air Gun.

More Nuts & Blots - Increases Air Gun's ammo capacity.

Harder Nuts & Bolts - Increases Air Gun's damage.