Axis & Allies Zombie map?
The rules seems like imposed on top of existing AA game, would it be difficult to implement this latest variant?
I just posted a version of the Axis & Allies & Zombies game at link. I was not able to implement the full ruleset.
AAZ actually has fairly complex interaction between the 3 sides in combat. It would take a substantial amount of work to implement.
Easier to implement would be the creation of a zombie whenever an infantry unit is destroyed. I have already suggested creating a unitDestroyed condition.