What would you guys recommend for:
- Rules
- Break down on Pass/Run %
- Plays to run
- necessary things to adjust for the sim

Rules: don't go crazy until you know the game pretty well. The basics:

Offense:
Fourth down-when do you want to go for it?

2 minute drills-half and game.

Short yardage/goal line-optional.

Defense:
Empty backfield sets-nickel/dime/quarter with full pass key.

Short yardage/goal line.

Balance depends entirely on your team, but it's risky and gimmicky to start getting too far above 60% in either aspect. A generally balanced offense is always toughest to slow down.

Plays: some work and many don't: look at what the good teams are running.