This a Class-D MTTAP (Multi-Troop Transport Attack Platform)
The D-Class MTTAPs were commissioned at the beginning of the War of the Red Moon (not ours, one of Jupiters') (2293 CE - 2301 CE). Designed as a transport over the rough terrain, the MTTAP were also equipped two Layle S-3 lasers, two Dingle & Howell Z-14.9 sniper rifles, and two Proton torpedoes. An extremely strong Mitzel partile sheild surrounded the whole craft. The D-Class MTTAPs needed a Pilot, a Gunner, two Co-Gunners, and could carry up to ten soldiers comfortably. The last D-Class MTTAP was decommissioned on 2306 CE. Later, some of the MTTAPs were bought by a mining company and reconfigured for their purposes.