Pros:

The Iconic First Episode remade!
Most of the secrets intact.
Co op Compatable!
This Campaign combined with the Duke Nukem Voicepack and Model makes this one fun campaign.

Cons:

Needs more Lighting, some parts are too dark.
No proper Rescue, you just enter the sub and get in a safehouse and no rescue ship or chopper, therefore no credits.

Conclusion:

Overall, a good map that needs a bit tweaking. Just have the lighting a bit better and have a rescue at the finale episode and it will be nearly perfect.