Bedlam

Bedlam is a 1996 run and gun video game developed by Mirage and published by GT Interactive for DOS, Windows, Mac OS, and PlayStation, in which players use a squad of three huge remote assault tanks (RATs) against mutated monsters called Biomex.

A fast paced action game where you run around a machine-gun wielding robot destroying everything in your path. There is a multitude of enemies and you can destroy almost every single thing on the map (buildings, vehicles, etc.). The reason for all this destruction is a revolution led by the robots against their human masters.