This was intended to be a quick build of duck hunt in the L4D2 engine but that turned into an escape map, which turned into an escape campaign.
This was also intended to be strictly mutation based but this has clearly been altered to function in standard modes. While the drawback to this is clear, in that this script change now functions outside the addon, I'm hoping the quality of the concept will make up for this.

While this whole build took less than a month, there were still some noticable changes that are worth mentioning.
- Map 1 used one mechanic in both situations (duck hunt/escape), allowing players to escape the shooting range at any time.
- Map 2 originally progressed forward through the pitchfork room instead of left through the cavern.
- Map 3 originally contained multiple encounters with the humans, primarily around the barrier points. This was changed when the map was converted to a gauntlet finale, to better account for the presence of infected and the rescue vehicle.
- Found survivors were originally randomly spawned, and merely acted as hostages trying to escape. This was updated to simplify their behaviors with hold areas and to allow them to provide help in certain situations.