Meant to post this a few days ago, better late than never right? Anyway, quick opinions on what I think of the maps.
Zoo - very fun map to play, suits a variety of playstyles very well. People tend to place motion sensors and claymores all over the buildings so Hacker is a must.
Stockpile - not much to say other than to say it's a god awful piece of shit map. It reminds me of Roundhouse from World at War, but somehow even worse.
Convoy - snipers will dominate this map. Nest way to describe it is to imagine Bog from CoD4, but with 3 large lines of sight.
Hotel - pretty much like Highrise from MW2, but without an underground section and elevators in each spawn. Take that as you will.
Call of the Dead - Fanatastic and challenging zombie map, tonsbetter than Kino, Five and Ascension. Whether it's on par with the WaW zombie maps is something you can't actually decide on until you've played it a few times, but it's easily as good as Shi No Numa and Der Riese.
sorry for not being amazingly descriptive and whatnot, but I'm very tired and wanted to get this out there so yeah.