: When you have at least six assassins available (indicated by full gauges), you can trigger an Arrow Storm —a rain of arrows that instantly kills every enemy in your immediate vicinity. Supporting World Systems
Forget deathmatches. Brotherhood introduced mode. You are given a target (another player). Another player is hunting you. Everyone looks like a generic NPC (a courtesan, a guard, a noble).
: Liberating towers also unlocks the ability to buy and renovate shops, landmarks, and aqueducts. This "puts together" the city's economy, generating passive income that you use to further fund your Brotherhood's gear and training.