Note: If all the campaign parts highlight red and say conflicts with each other, this is not the case, it's just a glitch with l4d2 because the campaigns all share the same addon information so they can link, just ignore it! Please download ALL parts to play the campaign! This is Part 1 of 6 this is the main part.
I hope this seriously improves your experience with this campaign Update: A serious issue that caused low-spec computers (or systems with low graphic settings configured in L4D2) to crash has been fixed.
