Light tank has a 20mm auto cannon, can go up to 50 mph on road due to its use of tires, has 2 mgs, and is pretty affective note the 20mm auto cannon will be able to penetrate most, if not all, armor of the time period. It also has a crew of 4 ( gunner, driver, loader commander) Medium tank, it can go about 30 miles in good conditions and has a 50mm cannon and a 20mm auto cannon. It has a crew of 5 ( loader, loader gunner, driver, commander). It also has 2 MGS and is pretty effective. Recon Car can go 70 mph, has a 20mm auto cannon, can fit about 5 people total, and has a crew of 3 ( driver, gunner/loader commander). It is used to harass infantry and scout ahead.
The light tank is the fastest in its class and is probably the most common tank in colvan along with the recon cars. NKO members can also get the blueprints