Once the war starts, you have 1 hour to beat the opposing gang. During this time your gang cannot add/remove members or go to war with other gangs. Attacking and defeating an opponent (but only from the gang menu and not from normal attack list, hit list or rival list) earns points that move the war bar in your favor. Killing the opponent earns extra points: Win gives you 10 points and Kill gives you 20 points. Each wining attacks earns you some xp but the winning cash goes into the war booty. You can attack an opponent even if the opponent is in your own mob. You can attack or be attacked by any level opponent. And there is no hospital.