Forage is a survival mode map for Left 4 Dead - the initial concept was to create a quick survival map to learn the basics of navigation graph editing in preparation for the release of the L4D2 toolset.
Many other survival maps force players into a specific spot of a level where they have the best chance of surviving and discourage players from holding out in others, and some maps confine players into small areas where they must hold out - I wanted to do something that was the complete opposite of this and create a more open environment that offered options for players. As such there are multiple weapons and ammunition points throughout the level and two radios from which the survival timer can be started; with the idea that a cohesive team will formulate their own strategy and choose what they feel is the best position, while teams comprised of random players from public servers can also enjoy the level and have a chance of surviving (at least for a little while).
The current revision of the map is in beta (version 6) and has gone through some initial play testing, but your feedback and bug reports are greatly appreciated!
More screenshots, and the source file, are available on my website
Updated 12/19/09 to latest revision (fixes minor clipping and navigation issues)