File:Q2.png The Tank Boss, also referred to as the Tank Guardian or Super Tank, is basically one of the rarest and most powerful enemies in Quake 2. The player will only encounter two throughout the game. They defend highly important sectors of the city including the Laser Grid in Unit 3 and the Power Plant in Unit 6. They possess armor that outclasses even the Tank Commander. They are about three times the size of the Tank. They are essentially a giant Tank torso mounted on a caterpillar tank tread base, hence the trademark "squeaking tread" sound they make while rolling about. Out of all the bosses and tough enemies in the game, the Tank Boss is the quickest, taking full advantage of its massive tank-like track.