No NW for GV's only N, E, S. This is my test terrain to work on issues, I'm just sharing it with what I setup to test the shooting problem. It's got neat features I put in like air spawns to stop wasting my time climbing, and now two tank shooting ranges so you can shoot at tank drones. You can work with the Graphics sliders offline for online tank combat.
A1 is a small airfield with a single runway, hop in a fighter or bomber and click on the extra spawns and see what happens. Un-protecting objects is in Arena Setup. Options, Arena Setup--->Environment--->Arena Settings---General-->ArenaFlags. Uncheck Protect Objects, then save and you can blow up all of the stuff on the map like in the MA without needing other countries offline. You don't get shot back at and can work on whatever in peace.....