Planetside 2 (2012), and formerly the original Planetside (2003). They're both heavily community-oriented games. 2 has gameplay somewhat similar to Battlefield.

Edit: To expand on what I mean by community-oriented, here's a genealogy of the different outfits (equivalent of a clan/guild) on one of the Planetside 2 servers: https://cdn.discordapp.com/attachments/887173952080863253/91.... Once you're used to the game mechanics you slowly get drawn into the metagame of complementary or conflicting personalities, outfit history, schisms, cooperation, drama, competitive play, leadership, and so on.