There seems to be a Urban Troop Pack listed on Amazon, though unavailable. It has a recolored Hazmat Suit, two old fashioned gas masks, a new head in a hood, two new shotguns as seen in the CoD Heroes 2 Soap figure, the firearm seen in the standalone Hazmat Suit, and an "anti-missile system". It will be an instant purchase for me.
EDIT: There's also a WWII checkpoint that's unavailable that has pictures now. Finally an antagonist.