Avengers: Battle of Sokovia

Defend the Vibranium core at Sokovia's centre. If you are able to defeat every Ultron Sentry, or if any Ultron Sentries remain and the core hasn't been activated at 180s - Ultimate Ultron will spawn. Ultimate Ultron will prioritise targeting any surviving players, if all players are killed he will activate the core himself. If the core's Collapse Sequence has begun, there is a 45 second window to stop Sokovia from crashing and destroying Earth. If Thor strikes lightning on the core at the top while Iron Man fires his Unibeam at the main Engine underneath the island, the island will be destroyed before it crashes to Earth and you win the game. To stop Ultimate Ultron, players need to teamup and get Ultron down to around 10% Health. If Iron Man, Thor and Vision use their Unibeam, Lightning and Mind Beam on Ultron at this Health, he will be vulnerable to Hulk's Worldbreaker punch which will finish the fight.