Fleet actions are group missions, some involving 5, others 10 or up to 20 players in the same battle. They are available as both ground combat and space combat and can be accessed via public and private PvE Queues.
Some fleet actions, though playable seperately, form a mission-chain, i.e. episode, such as the Starbase 24- and Klingon Scout Force-arcs.
At the end of a fleet action, each player is rewarded. Classic fleet actions (Starbase 24, Gorn/Federation Minefield, Breaking the Planet, Klingon Scout Force, Big Dig) reward Dilithium (480 for space fleet actions, 640 for ground). Players who have contributed the most are also rewarded with items. Finishing in first place gets a random item (as well as the accolade and trophy, if not already obtained), second and third place gets a random item, and all other players get a random item.
The Mirror Invasion only rewards bonus skillpoints and a level appropriate item.
 Daily mission
There is a daily mission for a different classic fleet action each day (every 20 hours). It rewards 50 fleet Marks and can be obtained from Lieutenant B'Mera for Klingon players and Admiral Grigori Yanishev for Federation players.
 List of fleet actions
Contrary to the name, players involved in a fleet action do not have to be part of the same fleet or of any fleet at all.
 See also
- Special Task Force missions (STFs): 5-player missions requiring more coordination than fleet actions