Land Train
Land Trains are war machines composed of an engine and several weapons-mounted cars. They were built and maintained by the Squat's Engineers Guild, a group which provided the best weapons used in the Squat armies.
The war machines have their origins in the vast multi-tracked machines which the Squats used to tow powered track-cars of ore, food and other supplies across the harsh, rocky, inhospitable terrain separating the vast Strongholds of their Homeworld planets. The trains were armoured to endure the earthquakes, meteor showers and violent storms wracking their planets. Such defenses allowed the trains to easily withstand most enemy fire.
Land Trains were later used by the Squats as mobile fortresses, the cars mounting a variety of destructive weapons.