Saw this as well regarding the format:
From a practical standpoint, there will be a few differences on Saturday. Without enough depth to draft a full team, Jones is splitting the teams into offense and defense, as hes done during spring scrimmages. The defense will wear orange; the offense and special teams will be in white.
Some of the scoring system will be familiar. Touchdowns count for six points, field goals for three and extra points for one.
The offense can add two points each with first downs, 20-yard passes, 15-yard rushes and fourth-down conversions.
The defense gets six points for a turnover, four points for a three-and-out and three points each for a fourth-down stop or a missed field goal. Stopping a drive under any scenario will add two points, and a pass break-up, tackle for loss or sack adds one point each.
Multiple scores can be recorded on a single play, so presumably the defense could earn 12 points by intercepting a pass and returning it for a touchdown.