Since I'm going to be going to bed soon, I'm gonna resumbit my tank for the next design phase:
A 3 man, 8-ton max tank with a fully rotating turret containing a AC18 and a coaxial AS-1910, with another 1910 mounted topside. It has 25mm armor on the front, 15 on the sides, and 10 on the rear, and 20mm all around on the turret. It has a 25mm horsepower engine and a hydro-pneumatic suspension that should provide a decent top speed and at least a somewhat smooth ride. The armor should try to use high grade alloys equal to at least RHA.
You can't get a tank that has thicker and higher quality armour than our current T15 and call it a "light" tank.
As for me, this is my own design for an armoured car as well as the others.
The MV20 is an armoured car build specifically for Jungle use. It runs on a petrol engine and has hydropneumatic suspension for increased speed, better terrain traversal, and a more stable shooting platform. It has an man-operated turret where a belt-fed AC18 with AP rounds can be mounted, though a 1910 can be mounted there instead. The passenger side has a 1910 mounted on it. The armour in the front should be enough to stop 7.76mm AP rounds, the armour on the sides should be enough to stop .30 cal rounds, and the armour in the rear should be enough to stop .35 cal pistol rounds.
EDIT: Hit Post instead of Preview. Editing.
Glory to Arstotzka.
EDIT2: Looked back up until we made the plane and couldn't find other designed for an armoured car, only another for a light tank.