I liked it was almost done and I fell through the map :[
Only issue I found is that the controls felt sticky, I got stuck on random locations where it wasn't a wall and I fell through the floor.
I think it was related to the colliders. I had a horrible time trying to get a tank to work correctly due to colliders for one of my own game projects during the semester, I found that for colliders I its best to overlap them to help with movement/ground collision, unity just doesn't like having too flat surfaces moving across each other.
for 2d I found a circle at the bottom by the feet for movement and then a square at the top for the rest of the sprite, 3D a sphere or capsule collider at the feet/for each track, and a box for the rest of the body. Same for vehicles put a sphere collider for each wheel. Or they have a built in wheel component collider but I didn't mess with it.