If the spawns get moved to bias the GV base they come from, then you have to have a carrot in the center of the tank town object to get players to venture out into danger. Most of the old TT fans I listen to are PO'd and unwilling to go into the new TT object. The trees have made the proposition very dangerous because none of them want to die a million times to a hand full of players already with the skillz, to learn a skill set they have avoided suffering through for years in AH2. The old CrateMA tank town didn't require driving anywhere to shoot at other tanks and rack up kills. Just making sure you moved a few feet at a time when some snipe located you. A very addictive lazy tank game.
The tank town object is four 1 mile squares. What they probably want is at least a 1000ft high escarpment with spawns just bakc from the edge on their base side. And places to hide in and to snipe from. The only places they will get shots at tanks in tank town will be if players try to use the roads, venture across the open grass areas, or drive up onto the center king of the hill mound. Otherwise, to be able to snipe down into tank town they will be sitting ducks to all the tanks hidden in the trees. And those ack fields with 63 88mm on each one, players groused about bomb****s, but the AH2 TT tended to be a very populated and lively place for "everyone" even with all the grumbling.
The offline gunnery training terrain I made available in the General forum has a road map of the tank town object in it so you have some idea of where things are. I have salted that offline terrain with 200+ tank objects to help you develop strategies to sneak around TT, villages, farmland, along with the town that has tanks all over it. You can print out the TT road map and keep notes of some good hiding spots on tall hills covered in trees. And a few other deceptive features you will never learn about if you don't have an offline way to drive around in TT to really explore it from a tankers PoV. Turn of shadows, reflections, and clutter to help see back in the trees.