Tank Destroyer
Tank Destroyer requires controlling a tank and destroying enemies while moving through the war zone, and i can see the upgrades clearly. The main mechanic involves using the tank's weapons to destroy enemies as you advance.
How To Play Tank Destroyer
Enter the war zone, use arrow keys to move, aim with the mouse, and click to fire at visible enemies.
Controls and Features
Movement is controlled with arrow keys, and you can aim with the mouse and click to fire. Graphics are the main draw for players.
Tips
Use arrow keys to move and the mouse to aim for quick strategies. Timing your attacks is better than rushing in blindly.
Similar Tank Arcade Game with War Zone Theme
Advance through the war zone using arrow keys to move and mouse to aim, I think the upgrades are visible, then click to fire your tank weapons at enemies, like in Bug Destroyer, which requires controlling a tank and destroying enemies as you advance.