Thoughts on the First Strike CoD Black Ops map pack

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The first DLC map pack for Call of Duty:Black Ops came out earlier this week. Having played it a little, I would say that I really like the Berlin Wall map with the guard towers. Interesting choke points. Kowloon is frustrating but I think over time it will be fun once I figure out its intricacies.

What are your thoughts in First Strike?