Have you guys ever thought of less than lethal guns?
Like, the player gets stunned by a taser, and instead of the ragdoll thing, they drop all weapons, and move very slowly, they can't really use weapons, and their screen is somewhat white.
Or if it's like a sandbag, it could be like, not losing health, but the same thing from above happens, just with the screen being white and the screen shaking.
HOLY stuff, I JUST GOT A GOOD loving IDEA.