Two. Your weapon is loaded. You have enough ammo to blast a tunnel in the mountains.
Three. Your grip on the steering wheel is firm. You are ready.
You face endless waves of enemies. The battles are plenty.
Don't stop moving. Don't stop shooting. Some enemies can be destroyed with vehicle's guns. Some require special bombs (deployed through time and space by our support team).
On the global map you chose your battles. Tap yellow marker - you will see area's name and type of weapon available on mission. Also you can see your chances of capturing this area in autobattle (you get autobattle chances by playing levels manually).
Once in the battle - drive (use joystick in left-bottom part of the screen). Shoot (tap enemies to target them). Open special explosive packages (roll over boxes).