How do I create a simple universal damage system?

Right now, I have damage for an entity set up like this:

Obviously setting something like this up for the many enemy types planned would be awful on my part, so I'm looking for a way to make it so that when a bullet or hitbox collides with something, it subtracts "Damage" from the "Health" of whatever it hits, is there an efficient way to go about this?

Use family.

Insert all the object you want to test collision in a family and " bullet on collision with family subtract damage from family" .

construct.net/en/make-games/manuals/construct-3/project-primitives/objects/families