Trouble with Shotgun Pellets Not Counting Towards "Damage"

Zombie Hugger

I am working on a game based around killing zombies and I do plan on having more than just one weapon. I have already created a functional pistol to start with.

The actors (zombies) die after getting hit by at least 3 (bullet) actors, from a pistol, however, it takes three separate shots from a shotgun to actually deal the 3 points of damage.

The shotgun fires 3 bullet actors and no matter how many bullets hit the zombie, each shot only counts as 1 point.

I have tried to use a timer to make the game check for bullets hitting the zombie (in case they were hitting too fast at once), but that only lets the zombie survive more shots.

Any help in the right direction would be greatly appreciated.