Fatal Freight is a 5-map campaign developed by myself (Tamari) with some help from friends here and there. The campaign supports all stock L4D2 gametypes (Versus, Survival, Scavenge, Coop).
This is just an all around great Campaign for both coop and versus. The atmosphere is attractive, the layout and design keeps the maps interesting and unexpecting, and the changeups to the default crescendo's and finale really make it a very unique and fun campaign.
Its a little late after L4D2's hayday, but very much worth the play.