It's good to see so many military types around here. I'm currently going to college at Colorado State (aka White Bread world) and so vets are few and far between.
I was a M1A1 tank crewman, 93-96, in D Co 2/8 Cav, 1st Cavalry Division (Fort Hood). As time progressed I went from being a Driver, to Loader, to Gunner. Eventually I became the platoon commander's gunner, and finally the XO's gunner.
Must have been doing something right.