Zeitgeist: Gears of Revolution
Jack grew up at Parity Lake with his twin sister Clare. His mom died at childbirth and his dad was a no-good drunk. Growing at one of the slums quickly taught them some hard lessons, everyone is out for themselves and if you want to stay out of trouble, either be stronger than it or faster. They hanged around with some gangs before they were old enough to join the army, their best hope of getting out of there.
Their commander was an idiot, a noble who believed that everything could be solved with a glorious charge. One of those got his sister killed, but folks back home didn’t care about the fact that only a handful of soldiers survived, they won. He quit the army after that, no way he would die so that some noble could make a name for himself. He had a choice after that teach at Banhaman Acadamy or join the RHC. Wasn’t much choice though, teach noble brats how to wield a sword? Hell no!