It's an anti-tank armor walker,carring a 135mm cannon,6X45mm smoke grenade and a weapon station with .303.

-Activation groups:

1.AG1- unlock the machine gun
2.AG6 - engine on/off
3.AG7 - unlock the turret
4.AG8 - lock the legs

-Control:

1. Throttle to moving forward with its 6 legs(very slow).
   *Activate group 6 and retracting the gears,then use Roll to turn.
   2.(After activating Group 7)
   *Trim to control the turret;
   Enable your mouse as joystick,then use your mouse to aim.
   Everybody know how to fire.
   "V" to launch the smoke grenade.
   

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If you want to move fast,follow the following steps:

De-activate Group 8,activate Group 6,retracting the landing gears,then you can drive it as a car.(You can't aim in high speed mode. So de-activate Group 7)