Me and my friend had a ton of fun playing storm the castle, which is a community level from the workshop. I bet other people would have fun competing for levels in the workshop. Not sure how you would choose which ones to add, but i know storming the castle is a ton of fun to try to get good time. I streamed 2 runs of it and got 9:06 on part 1 of the map. Heres the stream, let me know what you guys think.