A mysterious briefcase has appeared in the middle of the train yard, containing <bad things>! Naturally, RED and BLU, being the kind generous folk they are, try to give it to one another. Caboose is a Football CTF/Invade style map, where a middle neutral flag is to be delivered to the enemy's base. This is in favor of less stalemate-y gameplay. Thanks to Psy for making an excellent map to model off of, and the people behind The Construction Pack for their stairs. You're all awesome.