I've got them - 4 new maps ~ Convoy is good, Hotel is very tricky like high-rise with 2 floors, 2 others I've only had a couple of games on Storage lots of corners and buildings, nightmare for team games, and Zoo, which is a bit like Carnival.
Stockpile - full of campers
Zoo - full of campers, but easy to kill as it's huge and maze-like
Hotel - fun, a bit like Highrise from MW2 at times
Convoy - pretty good, open plan but with many buildings
I've only played for an hour or so so I'm sure they'll grow on me, in a good or bad way.