Pros:

Holy shit Dr.Who!

Cons:

Ragdolls dont alwayas work
Dead ZOOMBEYS occasionally turn into ERROR blocks

Conclusion:

Works pretty well, and oh god is it awesome

Pros:

DUKE NUKEM
DUKE NUKEM
DUKE NUKEM

Cons:

Flashlight can be buggy
Thumbs will ocasionally point the wrong way
L4D1 survivors hold it wrongly

Conclusion:

Looks great, but can be buggy.

Pros:

Looks detailed
Polished
Boomers look great

Cons:

Could use some work 
Nothing really special

Conclusion:

A good pack, but could be touched up.

Pros:

Looks very smooth
Good color choices
Very hawt chick

Cons:

Can become pink and black checkers when running on low end cpu's

Conclusion:

A very nice skin without any real flaws