Your mission in this strategy war game is to take command in 3 different campaigns as you dig in and man your defences against wave after wave of punishing enemy opposition. Place defensive structures that are capable of withstanding all enemy attacks. You don't have to kill enemies by yourself, let your soldiers do the fight. Enemy units will get stronger over time, so you should improve your fortifications as the battle continues. When things really start to get tough you can call in reinforcements to push the enemy back. Press SPACEBAR to take control of an individual turret or vehicle. When in control you can move around using WASD KEYS. Use YOUR MOUSE to aim and shoot. Press "Q" and "E" KEYS to select the next unit. Press "G" and "F" KEYS to cycle weapons. Good luck!