In Ultimate Team Events, you can collaborate and compete by completing Objectives in-game to unlock rewards as a community. There are two types of events:
Community Events
With Community Events, each player who completes Objectives in specified groups will contribute to a global XP pool. As this pool of XP grows, the community will progress toward thresholds that unlock rewards for everyone who’s completed at least one objective in the Event.
Team Events
Team Events will divide the community into different teams to compete from head to head for rewards. Joining a Team is easy; when you start the event, you’ll be given a choice to support one of up to five Teams, each with its own set of Objectives and rewards. Competitions are balanced based on which Team’s members are contributing the highest XP on average for the Event.
So once you’ve chosen your Team, start completing the Objectives to help your chosen side on the leaderboards. At the end of the competition, the winning team will be rewarded with new customization items to show off your allegiance, Coins, or Packs. The team that doesn’t win will still earn a consolation reward. The types of rewards available will change with each Event throughout the year.