Pros:

Finally, a new and unique looking Shotgun!
It looks beautiful just to add to that!

Cons:

It uses Valve's default animations.
Because of that, the animations clip through the gun making it look ugly. 

Conclusion:

I really want to say that I like this gun just because of it's unique design not found in any of the mods of Left 4 Dead 2 yet but that's not enough to cover up the 1 glaring problem that plagues it. If it had its own animations, it would be a 10!

Pros:

Well it's Timesplitters so that bumps up the rating up to 10/10 automatically.

Cons:

Sadly the fact that it doesn't play the whole music really hurts the immersion of battling the tank so -1 for that unfortunately.

Conclusion:

It's great to see some Timesplitters mods on this site and this here is no exception. If you could just extend the music to it's end point then it will be 10/10 material.