Clearance: Shooter is a first-person shooter video game in which the player starts out in a region that has been overrun by hostile forces and must accomplish a series of objectives in order to free the region. When the player first spawns, they are presented with a selection of several weapons from which to choose.
Kiz10.com: The Rules of the Game
The Control of Character:
Shoot, that's an LMB.
Aim, or RMB for short.
Movement, AT, S, D, WASD.
The space bar to leap,
C -- take a seat,
Tab key: pauses play.