Exoskeleton

I have changed/added some Things:

1. The minigun looks now more realistic and it has additionally a ammo-box on the side.
2. There are now two headlights in front of the cockpit and instead of an extinguisher, there is now a hatchet for emergency.
3. New the extinguischer is on the backside below the Rocket-stock whose hatch now has an opening Wheel.
4. In the end, there is a new antenna on the backside for better comunication.