Within the new public lobbies it appears that custom maps are automatically downloaded by all who join the game.
When trying a map of mine with some friends it didn't work, despite being fully up to date on the workshop. It was easy enough to get around the issue, guiding them through to manually download the map from the workshop, and then it worked fine. However this does remove the possibility of hosting a game and seeing how strangers fare.
After swapping the lobby to a different custom map, created by someone else, the auto download worked fine; I doubt it is an issue with me hosting.
So are there any requirements for the map to auto-download for members of the lobby?
