A private venture by Bandit Industries, the Mark 1 was possibly one of their most successful products, selling over 5,000 to the Sanctan forces. An inexpensive vehicle with excellent reliability, it was the only tank used by Sanctan, Pilotmarian and Olympian forces. In Sanctan service, it was not very successful, as it was heavily outclassed by the Hercules tanks the Olympians used during the First War. The Olympians captured large numbers of them, and used them in secondary roles. Several saw combat against the Pilotmario 7th Army during the Second War, though by then it was thoroughly obsolete. The Pilotmarian Army purchased the remaining stock of vehicles as training machines. The Pilotmarian Army's 5th Infantry Division operated two captured examples. Their combat record is not known, other than one was lost. The other was taken home and now stands as a gate guardian for the unit's base.