First click "Play", then click "Start Game" and choose difficulty level. After you skip the intro demo choose your best style from the controls page. (Our suggestion is "Next Gen") According to "Next Gen" style, you aim with mouse and fire. W,A,S,D keys to navigate and space button to send bomb. Start as a soldier of fortune and don't underestimate your enemy's attack. They will attack you at the strategical points. You can find more effective weapons during the war. There isn't enough time to spend free, may it be easy. (: