Pros:

Very well done environment, I'm not familiar with the Silent Hill game, but this campaign rates high with me just from the L4D2 perspective. 

Highly detailed maps with challenging problems to solve.

Nicely balanced hoards, not too difficult for two on normal, but not really doable as a loner, probably a result of my skill level. 

Cons:

Would like a few more opportunities to acquire level two weapons.

Conclusion:

Anxiously await the finished product, great job!