Steering is pretty easy using the following commands
Turning:
left45, left90, left135, left180, left360
right45, right90, right134, right180, right360
(shortversions are l45, r45 and so on)
Moving up:
up1, up2, up3, up4, up5
Other commands:
swingleft, swingright, accelerate (short: acc), reverse (short: rev), boost1, boost2
Sentinel modes:
patrol0, patrol8, patrol360 (loger versions: sentinel0, sentinel8, sentinel360)
Aiming the gun:
For setting the direction of the gun use: aim1, aim2, aim3 ... till aim12
The angle is set with: aim30, aim50, aim70, aim90, aim105, aim120
You can fire the gun with: fire