How do you get Darth Revan in battlefront 2?

In Star Wars Battlefront II, you can't unlock Darth Revan as a playable character since he is not part of the game's roster. However, he appears as a skin for the Sith and Jedi classes in the game. To access Revan's character, you may need to purchase specific DLC packs or content that includes him, or play through limited-time events that feature him. Always check for updates or new content, as the game may periodically add characters or skins.