Almost complete rip-off of Leafo's work. Disappointed, but unsurprised.

So, I actually decided to gather up all my patience and make a full run to give this campaign a proper review, because why would I shit on the work that I haven't even tried yet? So I did. This version is almost exactly the same as the original upload by Leafo, which once again brings the question? - Why does it exist?

Pros:
- Sure, it fixed the broken flow error in the 1st chapter, that presents in both the original and Pops version, but christ. You can just restart the whole campaign once and it will be fixed.
- Sure, it removed the darkness filter, but you can cause a black and white state in Pops version on one of the Survivors, greatly improving the vision of this survivor and thus, he'll be able to scout ahead, which encourages the teamwork.

Cons:
- High ping issue in the 2nd map on transition from the mirror room still presents, which will persist for the remaining duration of the level. If you get wiped and the level gets restarted, you will have to deal with this for the whole duration of the map. (which is the longest btw) Had this been fixed, maybe it would be enough to actually give it 4/10.
- The lack of Pops gameplay changes, (the infamous key search simulator) destroys the purpose of many areas in the whole campaign. I literally ran through the whole 3rd map to the saferoom, skipped probably 50% of the areas and completed the level in 5 mins, thanks to my good knowledge of the map. (Same case with the 5th map)
- Same as the original, this version doesn't disable default ambience, which will overlap with the intended campaign's OST and ruin the atmosphere.
- Many malfunctioning navblockers (cause the infected to spawn in locked out areas, making them susceptable to cheesy strats)
- Missing Alone in The Town OST from SH2 in the finale! (Minor issue for some or for many, but this is actually the reason I sometime play this campaign)

Conclusion:
- If the author is really willing to make a difference here, he'll have to work real hard to do so. If the Pops gameplay changes really bother you, and you don't want to deal with broken flow error, this version may work as an Easy Mode of this campaign. However, as it stands right now, the lack of changes and fixes compared to the original upload by Leafo, does not justify it's existence. I would have actually reported this as a stolen work.

Pros:

+ Omg, finally!
+ Charger, jockey and spitter bring more challenge
+ Found some new secrets

Cons:

- Nothing has changed
- No left 4 dead 2 weapons
- No melee weapons
- Level 5 map has the same bug, high ping, the map need to be optimized
- Haven't played it to the end, but I am sure it has all bugs from l4d1 version

Conclusion:

Its really average in comparison to l4d1 version. I hope we will receive some updates for this one.

Pros:

+ L4D1 survivors in L4D2 campaigns
+ Its much better than the old version
+ Talkers changes which make a new story line
+ It now works for The Passing. 
+ Bill? Alive? Awesome!

Cons:

The old version had some bugs, and this version has some as well:
- It won't work correctly, unless all players have it 
- The names won't change back, unless you exit the game
- Can't combine any survivor skin mod with this.

Conclusion:

Despite some unfixable bugs, I love this mod with all my heart. Its good to see L4D1 survivors in L4D2 campaigns. It was always I wanted from Valve, and Rayman made it.