I like your idea of using a power shield
It gives the player some freedom for risk like WoT vs WT and without using hp at the same time, also making infantry riffles not useless as well
You need to make the glowing parts on the tank to show the energy level, the thing in the corner is too small
90mm cannon MUST be movable at least a little, you can make the ballistics much worse even, it has great potential to be fun but currently it feels needlessly annoying tbh
Also I broke module menu somehow