The Chelonian is a CORE 3rd-party unit created by TA-SECT as part of the Tortoise Pack. The unit is notably faster that most of the other Tortoises and is armed with the powerful but short ranged cannon, making it most effective on the front line. A trait it shares with the other Tortoise units is its ability to submerge underwater, allowing it to travel from island to island undetected providing the enemy doesn't have any submarines, Sonar Stations, or any other units with a sonar at hand. It has no ARM counterpart.