CTF 2Fort Snowy

here: http://forums.steampowered.com/forums/showthread.php?p=10384729 The water in the sewers is frozen and players can slide on it. The water outside is partially frozen with holes to let you swim under the ice.
This is an snow variant of Valve's 2fort, one of a series of variants of 2fort at various times of the day. The original discussion thread can be found