If you didn't know, setting a vehicle's angle points to weird directions, well, here is your fix!
Instead of passing degrees, you must pass a radian.
I provided a simple DegreesToRadians function below:
function DegreesToRadians(deg)
{
local rad = deg * PI / 180.0;
return rad;
}
You will have to do
vehicle.Angle = DegreesToRadians(desiredangle);
Usage example:
vehicle.Angle = DegreesToRadians(180);
The above example will set 'vehicle' s angle to 180.