

The campaign design process took four to five iterations before the final design was chosen.
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For example, there will be a new scoring system at the finale of the new campaign. “So we managed to expand that one Lighthouse map into a full campaign that’s playable from beginning to end.” The map design and campaign design was done completely by The Last Stand update developers, with Valve helping on bug fixes and issues that the developers were unable to implement on their end. “Originally the Lighthouse campaign was just the one survival map in Left 4 Dead 1, but we felt that if we could turn that into a campaign players might enjoy that more,” said the team's map developer who goes by NF.

“What was originally planned was just a port of the Survival Maps from Left 4 Dead 1 over into Left 4 Dead 2, all the missing maps that were never ported over… Just to get whatever was missing and get it into ” says Rayman. YES NORayman says that once a team, made up of members from all areas of the Left 4 Dead community from Survival to Workshop developers, got together the project began to take on a life of its own.
