The BattleMod community has come together to create a huge map pack - The Community Battle Pack!
Featuring maps by a large variety of creators! Please check the credits spreadsheet here: https://docs.google.com/spreadsheets/d/14ZnO9m-unru41yR4kw5H3QOeEa_48lrukqGj9EiXIes/edit#gid=0
There are tons of maps supporting every BattleMod gametype, including OLDC entries that have been improved since the contest, revamped versions of vanilla maps, ports of classic maps, and entirely new experiences! Each map has been included with permission from the author. By the way, these maps directly overwrite the singleplayer campaign in an effort to avoid stepping on the toes of any other existing multiplayer maps.
If you're interested in including a map in the pack, @ me on the srb2 discord. I'm not sure how frequently I'll be able to update this, but I plan on maintaining the community pack for a while.