This version includes punting, and for the first time, the team on the defending end of the ball is trying to score. This means that defenders need to switch to blocking for their returner, and players on offence need to try to tackle him. This is going to affect stats, tackle checks, basically a bunch of stuff.
So, if anybody wants to try this out and get back to me on any weirdness that happens during punt returns, I'd appreciate it. In the meantime I'll keep moving ahead.