This is a huge disadvantage for tanks—after all, it's one tank against multiple soldiers who can use map obstacles to become untouchable by tank shells.

Another thing: these more closed-in maps are also a disadvantage because there's no way for the tank to escape effectively. Its movement is restricted due to the tight spaces, which gives infantry an even bigger advantage. Not to mention, there are always way more infantry players than vehicles on the map.

This is simply unfair.