This mod is a fusion of my MW BTD, my WaW Zombotron mod and ZombieX. If you have played my MW or WaW mods you know what to expect, lots of zombie AI carnage. I added a game mode similar to ZombieX with the main differences being the following and probably a couple more I can't remember..
No First Zombie (I got AI for that).
No Last Hunter (Always hated that anyway)
No Zombie Puke.
The other two game modes are from BTD, either several waves of zombies with breaks in-between or zombies uninterrupted until time runs out or all hunters die. It has perk machines where you can purchase revive sodas, killstreak items and ammo, also mystery boxes with random weapons (including ray gun). 3 Nazi Zombie characters. Anti-Camp and Anti-Glitch features.
You can check out the beta of the mod here: