Pros:

-Aesthetics wise: Very great
-Maps are very well constructed
-Weapon,Ammo,etc... placements are also placed properly
-Beautiful vistas(true to life)

Cons:

-Bots fall off the collapsed tower right after you leave starting zone
-Some maps lack direction
-The finale

Conclusion:

This campaign is something I would call 'near-flawless'. Everything about it was pretty much amazing. There are many scenic places, which gives a sense of immersion throughout the campaign. But, there's a reason why it's 'NEAR-flawless'. That reason is the Finale of the campaign. Dear God, I wouldn't put my worst enemy through that Hell. First off; it's a never-ending horde sequence (woo). But that's just the beginning, when you enter the final building you are met with these things:
-Fire everywhere
-Hordes of infected
-Special Infected
-At least 4 Tanks in a row

All of that in a cramped fire-torn area. If you even TRY this campaign finale on NORMAL, you will not succeed (I played with bots, so you'd have a chance if you play with 2+ friends). This finale made me hate the rest of the campaign, because it just boggled me of how absurdly brutal it was, and it made me never want to experience said campaign again. This campaign is definitely a 'one-off' sort of deal.

Pros:

What

Cons:

Very lengthy to the point where it's downright boring
Terrible placement of panic events
The finale is way too difficult
Not enough ammo + tier 2 weapons
So.Many.Explosive.Barrels.

Conclusion:

These maps in general are an under-cooked mess. Everything about it is just so wrong. You can't take Half-Life, a game that is about the adventure; and plonk it into Left 4 Dead 2. It doesn't work. The levels have barely been altered from their source content. The amount of hordes that are in this campaign are astounding. It's not fun when you fight three hordes in a row in a small choke points. Throughout the entire campaign, tier 2 weapons started showing up at around map 4 - 5. Explosive barrels are another thing. There is so many of them it's not even funny. It's like stepping on a landmine; you shoot one, you're screwed. The finale is just asinine. I had to lower the difficulty all the way to easy, and barely come out alive from that. Overall, if you want a true Half-Life experience, just pick up the actual franchise on Steam.

Pros:

TONS of custom content
Custom audio + Models and animation
Good placement of items (Health kits, Ammo, etc...)

Cons:

Level design is lackluster
Custom horde segments can sometimes be atrocious
Christ the finale...

Conclusion:

This campaign is something I would call 'Less than Ethereal'. It provides so much content but it's delivery is just so poor. This campaign can be brutal when played on Advanced, Normal mode as well. Level design during some maps will leave you questioning where you're supposed to go next. The campaign does make up for it's extraordinary amount of custom content; such as custom melee weapons, audio files, finale sequence, and even models and animations. The finale is it's own subject. It starts off as your everyday "activate something, kill hordes, and escape" routine, which would've been a better way to do a finale in this case. Half-way through, however, it changes to you finding gas canisters. Now finding these canisters we're truly a pain since the finale area is so covered with vegetation and such, you'll be scavenging for these gas canisters for a while. Overall, this campaign could have been better if the levels we're designed better and the custom horde segments and finale we're fixed. It is definitely worth picking up, but ONLY if you're going to be playing with friends.

Pros:

It applies and old-school realism to the game

Cons:

Torso + leg shots are completely unreal.

Conclusion:

At first when I saw this mod, I had high expectations, and met most standards. The only issue I have, is the amount of bullets you have to use to kill a zombie by shooting it in the torso or the legs. I was testing this out earlier. I had an autoshotgun while my fellow bots had SMGs. I fired twice at a single zombie and he still fought back, to add to that my teammates where firing all their mags at him ( this one zombie was missing a torso after two autoshotgun shots. ) The same thing applies to basically every weapon excluding sniper rifles. I can solemnly say that I was very disapointed by this one factor. Yes I knew it would take more shots ( 5 - 10 shots ) to kill zombies. But this is just ridiculous. In conclusion, until this mod has been fixed, to match the appropriate sum of bullets it would take to kill a single infected. I rate this mod a 3.5/10.

Pros:

-Good skin textures.

Cons:

-Nick kinda looks a bit..Odd as the Spy
-The Bile should be a thicker green.

Conclusion:

I know there may be more cons than pros, but those are just minor things that can be fixed. Overall the skins are pretty detailed to match the characters of L4D2. Credit to the creators of these skin textures.

Pros:

Detailed maps
Exactly like the HL2 Chapter
Long chapters

Cons:

Bots lack of response to weapons
Lack of health kits + pills
Lack of weapons
Neverending horde in beginning of chapter 3

Conclusion:

It was a good campaign but I only got to chapter 3, because everytime I started chapter 3 the horde kept overwhelming me and my survivors. But put more random Health kits in these maps. My bots keep dying because of this flaw. Bots also do not respond to most upgraded weapons that were placed until the saferoom in the beginning of Chapter 3. Overall this campaign needs A LOT of inprovement. Rating : 45

Pros:

Jigglebone + Jill Bsuit = Yes, just Yes
Looks like more detail was added
FPS Arms, Hell yes.

Cons:

The device is on her chest. Yes I just qouted a speach from RE5
No facial Movements

Conclusion:

FPS arms are added. More Jigglebone = better Jill. The only thing that concerns me is the facial animations. This is the third version of this model and still no facial animations. When Mr. Lanky decides to add facial animations this model will get a straight 100. I give it a 95.

Pros:

Its Minecrafter Steve
Quite a unigue skin
Fits with Coach
FPS arms were added
Custom Icon for menu and In-game

Cons:

Head can get in the way sometimes in 3rd Person

Conclusion:

In my overall conclusion I think this is a very good skin for those who enjoy the game MineCraft. Personally I enjoy this skin very much and is one of my favorite skins. But fix the head a little bit. Excellent work my friend.