ALLIANCE DUEL 

1. Alliances with >20 members qualify for the Alliance Duel.

2. The Duel is a week-long competition against an enemy alliance. Each day features a duel theme, and completing corresponding acts earns points. At the end of the day, the alliance with higher points wins that day's duel. By Sunday, the alliance with the higher total score wins the entire Duel.

3. During the Alliance Duel, if a survivor joins a new alliance, they cannot contribute duel points to the new alliance on the same Apocalypse day, nor can they receive that day's ranking or victory rewards. Personal points are unaffected, and personal point chests can still be opened normally.

4. The survivor with the highest personal points each day becomes MVP of the Day.

5. The final 10 minutes before daily tally is the Points Sprint phase, during which detailed point changes are displayed. No extra point bonuses are applied during this phase.

6. On Day 4, the Hero Initiative theme, increasing hero levels does not grant points.