Pros:

+ Pretty good detail.
+ The Pros of being Liara T'soni.

Cons:

- Character is a bit too stary.
- Still Rochelle's annoying voice.
- Still Rochelle's name.

Conclusion:

For the most part, it is completely Liara. I'll mention the few points for improvement in my opinion. Firstly, the eyes. The character seems to have unusually wide eyes, which makes her stare quite a bit, even more so when she dies. You can change the name of the character from Rochelle to Liara in the Lobbies. The voice is annoyingly still Rochelle, but little you can do about that. Also, I believe the skin to be a bit too small, but that's just another minor detail which many may disagree with me on. Other than the eyes, I believe this to be almost perfect. If the eyes were tweaked, I might give this 9/10

Pros:

+ Details.
+ All the pros of being Rorschach.

Cons:

- Voice.

Conclusion:

The attention to all the details have been paid. Rorschach's masks even moves to the inkblots. Nick's name is changed to Rorschach, his FP hands are Rorschach's... in fact, everything is Rorschach except for the voice, which is still Nick. But if you think about it, the dry, sarcastic humour could be said to be on par with Rorschach's own. Still, there's little you can do about the voice. One annoying sidepoint is that Rorschach is dressed in fairly dark/muted colours, so it's sometimes easy to mistake him for a zombie in a rush. All the characters wear colours that stood out to avoid this. Regardless, it's perfect in every sense of being Rorschach.

Pros:

+ All the pros of being Master Chief.
+ Accurate design.

Cons:

- No shields/overshields/camo and Halo weapons/vehicles/etc.
- Missing details in completely covering Coach.

Conclusion:

Well, in-game it's all Master Chief. However, you can change the name of Coach to Master Chief as well, not to mention adding in a portrait of Master Chief in the Lobbies like many other skins do. For example, the Rorsach one does a complete overhaul on Nick with the exception of his voice. This one is just a skin. In addition, whilst in first person view, it is still Coach's hands. There shouldn't be such a lack of detail in your works. Having said that, it's an awesome skin and the only disappointment is that the weapons aren't also from Halo design. I would very much like to see the weapons in L4D2 remodeled to be exactly the same as the Halo weapons to make it exceed perfection.

Pros:

+ Awesome music and totally fitting for the tank.

Cons:

- None

Conclusion:

In my honest opinion, better than the actual tank music by far. It gives more of a pumped feeling than an 'Ah heck' kind of feeling which the original tank music gives. If you don't like the theme, don't use it. Music is a personal preference but for what it is, it's perfect for the tank. Not much more to be said.

Pros:

+ Slightly more realistic feel.
+ Works for personal preference.
+ Simple.
+Allows viewing of somewhat more immediate surroundings.

Cons:

- Sight slightly blurs up, particularly on dark maps. Not a big problem.

Conclusion:

It's just one of those things which you add as a personal preference/adjustment. If you don't like it, don't use it. But for what it is, it's practically perfect.

Pros:

+ Original concept for L4D2
+ Fun to play with friends
+ Funny in-game comments
+ Eternal Zombies if you don't build a rocket... what more do you want?
+ Interesting building techs.
+ Small and simple map, no navigational problems

Cons:

- Impossible to do flying solo
- SI just stand behind some of the fences once they're up
- Bots are pretty useless, but what else is new?
- Arming bots are annoying...

Conclusion:

So you can pick and choose what you make and build, so landscaping and stuff isn't really an issue. Slow to start at the beginning, which makes it sometimes too difficult on harder levels when you try to build at first. If you wish to equip the bots, it takes extra time... Once you get going, sometimes you can't be stopped on this map... perhaps tweak it to become harder by not pouring on more commons, but more SI? But I'm not too fussed. It's a fantastic custom.

Pros:

+Very nice story line. Fairly uncommon to see that.
+ Reasonable difficulty, even on expert.
+ Detail was very good, even believable.
+ Although the map (particularly the first act) was particularly long, I found I didn't actually mind too much.

Cons:

- The saferooms are too far away from the start. Sometimes made it fun, but sometimes quite frustrating.

Conclusion:

Nice, solid campaign. I'd have given it a perfect score, but the saferoom distance annoys me a bit. But actually, that little qualm aside, the campaign is S-Ranking and for all intents and purposes, perfect.

Play with friends for the best experience :P

Pros:

+ Simple design, without the need to overcomplicate.
+ Simple defence concept.
+ Puts the meaning in a survival game.

Cons:

- Perhaps a bit too small and limiting.
- Graphics somewhat lacking, but a minor detail if you are just looking for something to shoot.
- Slightly difficult to camp, which may be how many people do survival.

Conclusion:

Not bad, but I wouldn't say fantastic. It's simple, but also lacking in elegance somewhat, for example, I really don't like the black sky - add some grey or blue or similar. Admittedly, I like the map, but I'm more likely to end up playing the 'Helm's Deep' survival.

Pros:

+ MASSIVE map.
+ Shockingly identical to the actual Helm's Deep (except for the hole in the gate, but I like that).
+ Interesting addition of changing difficulties depending on how well you do. If you don't do well whilst surviving, it gets harder :)
+ Practically an open weapon choice.
+ So funny when playing with friends! Especially when you do stupid things!

Cons:

- The requirement for such a long time limit to actually reach the 'ending' (30 minutes) - but minor, as no more zombies arrive after that.

Conclusion:

Really? Play it for yourself. With friends. It is practically a must. It doesn't matter if you survive or not, as long as you just mess about! A great laugh, even when things go horribly wrong.