Pros:

+ Adds a nice weathered texture to the model, much better than the Default model.

+ Dat reload animation! Plus, the animation for Third Person are very similar with this Magnum mod in First Person view.

+ It matches perfectly with the Default HUD for the Magnum, and also an awesome replacement.

Cons:

- Minor Con: The Helping/Item Grab Hand animation doesn't seem to work with the Magnum in hand. Then again, I do quickly skim over items/weapons for the hand animation to fully register. (-0.1)

Conclusion:

Overall, this is a definite recommendation to download this mod for the Magnum than it's Default counterpart.

The only con, which it is extremely minor, is the Helping/Item Grab Hand animation doesn't seem to work - for me at least. Again, I may/might have skimmed over items/weapons for the animation too quickly to fully register.

Pros:

+ Gives the Preview of the campaign map a much more dynamic feeling and look.

+ The Colour Code for the campaign maps' previews matches with that map's environment perfectly. I.e. The Passing previews matches with the purple colour and more.

+ A much better replacement than their Default counterparts.

Cons:

- There are no Main Menu Previews for the L4D1 campaign maps. (-0)

- Personal: The campaign preview for Cold Stream for the main menu has been reverted back into its old Default state, and the preview for Map 3 of Cold Stream has been replaced with its Main Menu version instead of showing the preview of Map 3. (-0.5)

Conclusion:

All and all, this is a definite recommended download for those who want to replace that dull, bland, and rather non-eye candy of a Default Map Previews that Valve provided us with. Though it is not just the Main Menu Previews for the campaign maps have been changed, it also changes the previews for the maps of that campaign too!

HOWEVER, ever since the Beta version of L4D2 has been 'out of the Beta' on the July 2nd Update, plus doing a comparison between the in-game previews and your previews shown on DeviantART (yes, I have this under my Favourites on that site), the Main Menu Preview has been reverted back into its old Default state and the Preview for Map 3 is currently using the Main Menu Preview instead of its Map 3 Preview.

I may be the one out of the many here for this con, but it could be a personal issue than an update issue. I may never know about it unless there is some form of confirmation(s) from other players about this.

Pros:

+ A very nice dynamic feeling and added detail.

+ Gives the Specials a more realistic and scarier look than their Default counterparts - it looks like that they've been through so much in order to reach and prey the Survivors.

Cons:

- When you equip a melee weapon, the blood splatters will not show up on the weapon itself. (-0.2)

Conclusion:

Overall, this realism skin is definitely worth checking out and downloading if you want that dynamic, nightmarish, detailed, and realistic feeling than their Default counterparts.

The only known con for this mod is whenever you equip a melee weapon, the blood splatters would not show upon the weapon itself.