yt-3 is my first tank(because 1and2 is not a tank),so i try my best to finish it .act 1 is to start engine,and you can control roll to trun left or right,control pitch to icrease or slow down the speed of the tank (cruise engines are always on, use throttle to control it and break is break,but if you haven't started act 1 before,you may not turn left or right).act 2 is to start the guns. act 3 is to start the ground-to-air machine gun, use pitch and roll to control it,but youshould make sure act 1 is off. act 4 is to start car engine, it can increase the speed of the tank on land.vtol and trim is to control the tank battery. please pay attention to safe driving.I hope you can enjoy yourself. thanks for reading.