I'm definitely joining the military and I want to be an officer, the question is what branch and how I will be commissioned. I want to go the ROTC route, but that means I'll have to go Army because my school does not offer Navy ROTC. How does the Army compare to the Marines in terms of discipline and enforcement? I've seen a bunch of fat slobs in the Army, but none in the Marines. That says a lot when you see that, so it got me thinking.