YOU NEED A JOYSTICK TO CONTROL THE LEGS, AND DO IT VERY SLOWLY.
This is basically the Metal Gear Solid 3 Shagohod if Granin was in charge of it instead of Sokolov.
COMMANDS: 
AG1-2: Parachutes 
AG3: Lights 
AG7: Unavailable
AG8: Activate Everything
PITCH UP-DOWN: Move Legs (Do it slowly) 
ROLL: Change Walk Direction 
YAW: Rotate Torso 
VTOL: Rotate Shoulders 
TRIM UP: Rotate Elbows. 
MISSILE LAUNCH SEQUENCE: 
1) TRIM DOWN: Prepare Missiles 
2) THROTTLE UP: Missile Launch Mode 
3) AG4-5: Launch Missiles
4) BREAK and AG1-2 for Parachutes
Feel free to Modify, Use and Share.
Specifications
General Characteristics
- Created On Windows
 - Wingspan 81.6ft (24.9m)
 - Length 13.9ft (4.3m)
 - Height 44.3ft (13.5m)
 - Empty Weight 25,967lbs (11,778kg)
 - Loaded Weight 38,315lbs (17,379kg)
 
Performance
- Power/Weight Ratio 1.759
 - Horse Power/Weight Ratio 0.044
 - Wing Loading N/A
 - Wing Area 0.0ft2 (0.0m2)
 - Drag Points 46029
 
Parts
- Number of Parts 173
 - Control Surfaces 0
 - Performance Cost 958