Lead an elite team of space marines!
Use W,A,S,D to scroll. (you can also click/drag the mouse or use the buttons on the sides)
Press TAB to switch between troopers, R to reload, M to toggle mute,1 to show percentages of visibility with the machine gun.
Finish mission 12 to unlock the hard mode!
If you’re stuck in a mission after mission 1, click the help icon for some advice!