I find C.O.D line contructions-sets much more adventurous of the recent [competitor] production and therefore, although it was difficult to get them in Italy (fortunately I have a very good dealer nearby), I purchased the Humvee (2, because it is too beautiful) the Abrams tank, the Dome fort, the Black Hawk helicopter of navy seals (magnificent) along with the boat and the Hughes helicopter, as well as all the series of soldiers sold separately. I look forward to having the Harrier Jet and the Russian BTR-82 (not sure if the import is planned here in Italy yet).
They are all well packed, while waiting for my kids (4 years old) to grow up enough (at least 7, certainly not 14 as stated in vs. packs, when I hope they will be able to have fun with the girls and not with constructions :-) ). I hope meanwhile you, in addition to the zombies (which frankly I do not understand, not being very much an Activision fan), I would very much like you managed to produce a more appropriate counterpart (Russian, European, Arab Army). The potential would be very high, given the weapons available even by these Armies.
If I can provide an opinion: I saw previews of the Enterprise NCC-1701 starship, too large to be displayed too small to play with the characters. I would see more appropriate, to have small dioramas with some of its sections (control room, tele- transporter room, engine room, reconnaissance-spaceships port, and 1 or 2 people per pack): much more playable!