Today we have some great news for the fans of Counter-Strike: Source, de_train will hopefully be released today, check back for updates later. Here is the official release from steampowered.com.
We're still on track for releasing an update to Counter-Strike: Source tomorrow.
While we've been talking for a number of weeks about the new hostage rescue map we've been working on (cs_compound), Turtle Rock Studios has also been working on getting de_train converted over to Counter-Strike: Source. Along with cs_compound, we'll be including the new version of de_train in tomorrow's release.
Along with the two new maps, there are a number of fixes to the bots in Counter-Strike, an enhancement to the radar to display your current location in the map, and a fix for Half-Life 2: Deathmatch where players are disguising themselves as headcrabs, filing cabinets, and other invalid models.
Here's a preview of de_train: