Making a little progress with the upcoming WW2 tanks update - still a long way ahead! I have managed to fix the chassis angle thing thanks to SgtMkIV VietDoom ACS scripts. The tank itself is kinda cubic to fit the original - vanilla Brutal Doom - tank hitbox.
Might adjust the turret offset later and I'm still not sure about the HUD - but more or less it is what it is.
Soon I'll release a test version so you can try out and provide feedback because all other tanks to be heavily based on this one. If this "prototype" runs fine, all the others will be easier to make.