To go along with our Halloween sale we added 4 Halloween themed maps. The game will update late tonight with these maps in the Halloween maps folder, but if you want to play on them now you can download them from Steam Workshop:
http://steamcommunity.com/sharedfiles/filedetails/?id=331663246
http://steamcommunity.com/sharedfiles/filedetails/?id=333484140
http://steamcommunity.com/sharedfiles/filedetails/?id=308347245
http://steamcommunity.com/sharedfiles/filedetails/?id=314222320