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 plasmashield 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.[1]
Although it was a highly effective combat vehicle, the AT-XT was never mass-produced as its designers were constantly improving its design and combat capabilities. Even though it didn't see as much combat as the AT-TE or the AT-RT, the design of the AT-XT would prove to be valuable to Imperial designers as an inspiration for the AT-ST walker that would be used extensively throughout the Galactic Civil War.
In addition to its design-legacy, various AT-XT models were retained in use by the Galactic Empire, mostly for research and development purposes. Due to the fact that the AT-ST wasn't as good as a front-line combat vehicle as the AT-XT, the latter was still used in combat.[2] Even Rebellion forces eventually acquired the vehicles and used them in multiple sieges, challenging any garrisoned AT-STs present.[3]