Made up of AT-AT's, AT-ST's, TIE Crawlers, and the behemoth TX-130 Assault Repulsortank. Some of the many uses of the MATF are:

To transport troops in all kinds of climate and terrain as safely as possible.
To go on the offensive against all types of defensive strongholds, formations, and forces.
To patrol and defend bases, outposts, cities, towns, etc., in defense of all Imperial Laws and Security.
To lay waste to designated cities, towns, or outposts.
To act as mobile command platforms in which unit commanders can direct the flow of battle.
To lay cover fire for advancing Infantry forces.