I did this battle tank in less than 24 hours in total for a mobile game "Tank Hunter". Polycount is 28k, texture set 1x2048 PBR set.
It was a big challenge to use only one UV set for everything (Hull, turret, gun), so to keep good pixel density I used symmetry and UV overlapping as much as possible. Wheels and tracks are made inside the engine for this game.
This tank is used as a hero premium tank in the game. I also created some props for this game.