Alright while just screwing around with a tank of mine on XSI, making a stand for the turret, It came to me, the 2 stands looked like springy things that could like raise the turret up and lower it. So what Im wondering is if theres a way where on my model in the game, I could press a certain button to raise the turret up, then press the button again to lower it.

what do you mean with a "certain button"?

Yknow like, pressing the up arrow keys raises it, the down arrow key lowers it. That sorta thing.