Some people say it's ATZ lite.. but really it is just a fast pace shoot em up games. It has some features(like the card draw) that ATZ does not have, but the engine is basically the same.
The Zombie set is broken down into 2 packs of Modern Zombies and 1 pack of Spec Forces... but you could use any of the models as your strike team. We will have a couple new sets coming out and one of those is the same set with SAS.
Does that help?
RebelMike