27.56 ANTI-TANK (A-T) DITCH: A SSR may specify placement of trench counters as an A-T Ditch or obstacle in order to simulate extensive anti-armor defenses. An A-T Ditch is treated the same as a trench except that no vehicle may enter an unbridged A-T Ditch and Infantry must pay two MF plus COT to enter/exit the counter of an A-T Trench.