Just discovered this doesn't work with the latest build because there are two mutations in one vpk. I'm working on a fix.

It's a very fun mutation to play around in. Love it.

I has some issues with the explosion sound though, it only seems to play occationally, usually when the explosions are triggered by other zombies.

Also, it would be cool if you could pass on the killer as an activator to the explosion, so it tracks it as friendly fire. I'm not sure if that's possible to pass to an entity group though. It might be possible using DoEntFire if the game event passes along the attacker.

I believe just setting Attacker in AllowTakeDamage will work. I'm doing that in SIPlus for the smoker's cloud damage