For the most part, I can't say that I'm really that impressed by the trailer itself. Oh, I'm always up for some four-player survival against the undead...but the soundtrack and camera movements just don't appeal to me.
On the other hand: take the above frame captured from the last few seconds of the trailer. Now, imagine this beast running you down after you've fended off several rounds of Imperial Japanese Army zombies. Yeah...I'm scared, too.
You can watch the trailer below, or click the "Source" link to see it in high-def. Map Pack 2 featuring Shi No Numa (Zombie Swamp) lands on Xbox Live and the Playstation Network on Thursday, June 11th.