I can't really think of any game that gives this kind of gameplay, in this manner... ?
Iron Front came close but the troop numbers were too little, and there were too few vehicles around (IMO)
Oh, and messing with the game files you can give yourself pretty much any weapon or vehicle you want, quite easily. However, this is only for singleplayer! i also did an edit in which I made the StG44 behave more like it does in other "shooter games", giving it considerably less recoil when aim/zoom firing, which feels great!
https://www.youtube.com/watch?v=5NFIaEKroDMWhat cha'll think?