Which Exactly is L4D2's Hardest Campaign?

Not accounting for Realism, but the ratings wouldn't change up that much Never Lose at the Dark Carnival barns again:    • Never Lose at the Dark Carnival Barns Again   Understanding Common Infected is the key to L4D:    • Understanding Common Infected is the Key t...   How to Position in L4D:    • How to Position in Left 4 Dead   0:00 - Intro 2:40 - Easy Tier 5:29 - Normal Tier 10:19 - Medium Tier 16:19 - Advanced Tier 19:52 - 4th Hardest 23:13 - Hard Tier 33:58 - 3rd Hardest 34:11 - 1st Hardest 34:29 - 2nd Hardest 34:59 - Conclusion Image link to both final Tier List and my chapter hot takes: https://imgur.com/a/NOaPfMp My workshop mods: https://steamcommunity.com/sharedfile... (Note that this video has mild colour correcting in post to give things a darker look), this isn't how it 1:1 looks in-game for me #left4dead2 #valve #gaming