Alliance Tournaments have three phases. In the Event Phase, members complete tasks for points. In the Rewards Phase, the alliance's final rank pays out. In the Results Phase, the alliance is placed in a league or promoted or relegated. Your alliance needs to be Level 2 to enter. League Events use a shared task board for the whole alliance. Each member can claim only a limited number of tasks per day. Claiming a task removes it from the board for everyone and replaces it with a new one. Harder tasks give more leaderboard points and Alliance Tournament Qualifier Credits, so they get contested. Rewards can take up to 5 minutes to arrive after the event ends, because promotion and relegation must finish first.
The Surge is a short alliance activity. A player at Ops 71+ with 100 Veilshards activates a Hostile Spawner in an eligible Surge system. For the next 3 minutes, any alliance member of any level can fight the hostiles that spawn. They get harder as the timer runs. Scoring rewards both the alliance total and each player's own contribution. The player who started the Surge gets bonus points. Below Ops 71 you cannot start a Surge, but you can join and score in one your alliance starts. You get Veilshards from the Hostile Harbinger Daily Goal in the Veil. Rewards are Surge Fragments, which you refine in the Support Refinery, and progression materials for specialty ships. G7 participants also earn Primordial Plasma, needed for high-tier G7 Combat Tree research.