All Terrain Experimental Transport

The All Terrain Experimental Transport (AT-XT) was an experimental armored assault walker used by the Grand Army of the Republic during the Clone Wars. It was a predecessor to the AT-RT and AT-ST, the latter of which was used extensively by the Galactic Empire.

Description
The AT-XT was equipped with twin laser cannons mounted under its chin and two long-range proton mortar launchers.[1]

Also, as a defensive measure, some units were equipped with a plasma shield capable of absorbing enemy fire for a short period of time. In spite of its reasonably slow speed of only seventy-five kilometers per hour, which was only fifteen kilometers per hour faster than the AT-TE, and five kilometers per hour faster than the AT-RT, it was capable of demolishing enemy columns.