Pros:

* working ?-Box
* able to fix barricades
* looks like the CoD map
* weapons on the walls (and not glitching out)

Cons:

* sometimes the special infected can't, come in from the broken barricades
* weird barricade fixing
* the stair's with the couch, the couch is a bit glitchy

Conclusion:

in all its really well done :)