Games for sure. The brigade surgery sword of Damocles was a big factor. The truth is, it was always a haystack of small things that broke that camel's back. I would absolutely have to add: "a massive inertia with regards to efficient care." The fact that I always felt like if i ever wanted to do more than the bare minimum, I had to constantly fight to make it happen, and any time I stopped pushing that rock - even for a minute - it would just roll back down the hill of motivation. Exhausting.
AHLTA sucks, but not even close to enough to have made me leave if it weren't for the laundry list of other reasons. I've never understood how that could be the primary reason someone would get out. It's sucks. It's just small fries, relatively. If the Army put a nickel's investment into morale and productivity, AHLTA wouldn't even cross my mind.
Pay is a big deal, but never a deal breaker.
I always felt like deployment was part of the gig, so while it might not be great it is something I knew I was signing up for - so long as you deploy within your specialty. That is, of course, screening out the skill rot associated with most deployments.