At the time I was coming back in, the Corps wasn't taking any prior service guys. An 03 E-5 with 3 deployments, guess they felt they didn't need the experience :p
I have a CH pro setup with TIR5, you will not be disappoint. If you or anyone else that doesn't want to drop the 150 for Trackir, there's a way to use a ps3 eye with a home made filter and LEDs with free track. It is a pita to set up though.