So, you been bombed and shot a few too many times as the obligatory after your tank is killed by aircraft respawn wirbel? And this is to get even with the aircraft killing your tank repeatedly at a spawn then? Don't you want the same for tanks that when you spawn you are in the gun position too?
Ever wondered why the wirbel and osti don't have a commander mode? Do you already push all of your wirbel and osti turret position views all the way up and save them F10 to shoot using tracers as your guide? A commander mode for the wirbel and osti would make it so you just put the circle on your target and mow him down right off the spawn in. Is that what you are asking for in effect if you have your views pushed all the way up? Some very good GV players already can single shot do this in tanks from right after the spawn in. Just how gamey you asking HTC to devolve GVing to?