No compass, and such inside...probably already known...anyways...
From the driver position, move the MG dn...big red triangle. Less as you angle up, turns to a line if you bring it to a straight angle.
I went to the pintle gun, fired at some trees, immediate CTD
Seems GVs are not affected by inclines, etc...once at full power, away you go
Also...when i spawned, in a nice opening this time