The archive contains 10 different variations of the turret for the tank. 5 for 24-bit mode (.G24), and 5 for 8-bit mode (.GRY, available to run under MS-DOS only). New textures for tank turrets created for 8-bit mode can also be installed for 24-bit mode. You will need installer any of these towers. Before you set any texture, delete the attributed label at the beginning of the texture name.