The WW M-4 medium tank is very similar to the historical M4 medium tank, with production of the M-4 beginning in 1937.
Armament consists of a 3"/30 howitzer in the turret with a .30" coaxial MG, with 2 fixed .30" MGs beside the co-driver and a flexible .30" MG operated by the co-driver in the hull and a fifth .30" MG in a AA mounting for use by the commander. The crew is five men: commander, gunner, loader, driver, and co-driver. Armor, as built for the M-3, ranges from .25" up to 2". Weight is under 25 tons.
The M4A1 series began production in 1939, and replaced the 3" howitzer of the M4 with a 4" howitzer, and removed the fixed .30" MGs. Armor remained the same, while weight increased to 26 tons.
This post has been edited 4 times, last edit by "Hrolf Hakonson" (May 6th 2010, 2:06pm)