Pros:

+ More fitting than the lame desktop screen
+ Nice nod to the Resident Evil franchise

Cons:

- None

Conclusion:

Its always the little things that can make a game feel right.

Pros:

+ Infinitely more menacing than the vanilla tank
+ Realism VS is now even harder for me on nighttime outdoor maps
+ Love the details, the markings, shackles
+ Reminds me of essentially a zombie version of Bane

Cons:

- Not suitable for daytime maps but nothing you can do about that so not points off there.

Conclusion:

Download this and use the Requiem for a Dream tank music from GB or the Xenogenocides metal music pack and bask in the epic.

Pros:

 + A sleek looking re-skin
 + Plenty of detail
 + Perfect aesthetic for the L4D universe
 + arby26's animations

Cons:

 - No real cons to speak of
 - I find it strange that it is a replacement for the SCAR and not the M16, I wouldn't take points off for that its just more of my personal preference i guess.

Conclusion:

Download this lovely add-on and see for yourself.