Pros:

- good intro video
- more than one path takes you to the next area
- very playable
- nice environment, a lot of walking on the rooftops going from one building to another
- not too hard
- not too long
- good placement of weapons and med-packs

Cons:

- it would have been nice to have an intro speech about where you are and we you're heading
- med-packs, pipe bombs and unlimited amo is definitely handy in the final stage, but I would prefer a more challenging finale and not just rely on continuous shooting with all possible weapons. 

Conclusion:

Overall, this is a very good campaign; nice and fun. Very well thought through and executed.

Great work. Thanks for the effort!