As you guys know, I made a "Trijets Air Force", and I fell like I have been expanding that a bit too much, and should make an "armed forces". SO, welcome to the "Armed Forces!" I am working on adding one light tank, main battle tank, one heavy tank, and tank destroyer, and some other armored cars and such. I have sketched the main battle tank and the light tank so far, and now I am working on the prototypes, which should be released today and/or tomorrow. The two tanks are the Knight Corp KC100MBT, and the Knight Corp KC122LT "Cheetah". Here are some pictures of the sketches: 
@bjac0 okay, i would like to see it
@Trijets here, i'll do a redesign, you can choose whether to use it
@bjac0 i tried to make it as straight as possible.
the engine block of the top one is a bit, round to say the least, i'd probably do a 20 degree ramp at the start of the engine block and form the back of the turret to that, then make the back part of the block a 90 degree drop off, maybe a 45 degree transition plate there. Otherwise these seem to have tiny engines.
@randomusername thanks for the motivation! The prototype of the KC100MBT should come out tommorrow.
Pls give feedback