tf2maps.net is hosting another mapping competition, but this time, they're providing you with all the content!
They aren't asking for a full map, instead they're looking for a 2048x2048 scene that incorporates the custom content they provide. If you're looking for a quick way to get into mapping for TF2, then this is your chance! Entries are due August 25th; better late than never.
Check out the rules
here.