The tape can be found at the Bounty. It is located next to a radio on the second story of a shack.
Maz Tabor: These are the rules for a Blood Eagle to advance in rank. Rule number 1: Any Blood Eagle wanting to move up in rank must formally challenge another higher ranking Blood Eagle in a game of the challenged Blood Eagles choice of games. Rule number 2: All Blood Eagles must know the rules of the games or they will be forced to walk the plank. Rule number 3: If a Blood Eagle gets caught cheating they will be forced to walk the plank. Rule number 4: Best 2 out of 3 games will determine the winner. Rule number 5: If the higher ranking Blood Eagle loses the match, they must step down willingly or they will be forced to walk the plank.