Total tank simulator built-in menu to select the next unit: Tab to select the previous unit: Shift+Tab to select the next weapon: E to select the previous weapon: Q to switch units Control key: Left Ctrl to switch selection: LMB Switch selection engagement: RMB switches HUD: Backspace switches filter perspective. The Total Tank Simulator game is a strategic war adventure mobile game. In the game, six major countries will participate in the war and have different types of troops to command.