I don't think there will be any irrealistic barriers. Instead it will hopefully be like trackmania, how if you leave the map and keep driving, you drive past the background, and then eventually fall into nothingness (if thats a word lol)
I think that instead of only ground vehicles, there should be aircraft, like fighter jets and helicopters, or transport aircraft to quickly transport a large amount of players. Another awesome thing to include would be rappeling from helicopters or cliffs. but having aircraft would also require anti...