Marauder tank

The Marauder Tank allowed the GLA to seriously compete in tank warfare. Assembled by Arms Dealers, the Marauder was more heavily armoured than the Scorpion. Its cannon could be upgraded using salvaged parts to a greater extent than the Scorpion; Marauders were even known to sport twin cannons a la the Chinese Overlord. The quirky standard Marauder design meant that it lacked a rotating turret, and the whole tank had to turn to fire at enemies.

GLA generals had to spend a promotional point in order to obtain the Marauder.

Upgrades

 * Toxin Shells - Loaded Marauder Tanks with shells laced with toxin. The toxin itself could be upgraded to Anthrax Beta (or in the case of Dr. Thrax, Anthrax Gamma).
 * Junk Repair

Marauder Tanks could also be upgraded with parts salvaged from destroyed enemy units.

Tactics/Counters
Marauders were very cheap and easy to build in quantity. If tank-on-tank warfare was unavoidable, the Marauder was often the preferred choice for GLA commanders. A Marauder upgraded with salvaged parts could often deal a surprising amount of damage. It was certainly a better option to take on enemy armour and structures than the lighter Scorpion.

However, it had no protection against aircraft and was vulnerable to anti-tank infantry. Therefore it had to be used in conjunction with other units able to deal with such threats; the Quad Cannon was often used. The Maruader's unusual design meant that it could not fire on the move, which was a potential vulnerability.