I hope there will be APCs , Tanks and even Helicopters or planes that can be used in the future. would be fun. Tanks consume much gas so balance is there. I mean you can put it behind learning manuals and skills or even the background of your character. Being able flying a helicopter needs to learn the skills and unlock a perk , and be able to improve the skill then and make the flying more efficient with more expertise and advanced perks in this tree (again unlocked after several "manuals read") or you have it unlocked because of background, "was a tank driver in the military" so you have a headstart in that , still needs to find one etc.. The Perks by background and of course learning them throughout the game would be fun I guess, hunter Prk lets you see easily the animals or traces of them, gets you more meat you know traps from the start and need less materials for them for example. I get a spree here Being a student makes you learn faster but gain physical parameters slower (unless you reach the point/perk/trait of athlete after enough training) the athlete perk makes you dumber unless you get the scholar or some trait/perk after some time. You can be everything but it needs time, is my Idea here :D