-1
You know approximately how much damage you do already. You should not know exactly. It makes the game too gamey and is not realistic. While I'm at it, turn off the healthbar completely aswell.
It's great. It is needless information that distracts you from what is important. Hit them, don't let them hit you. You never feel safe.
I would like to see the blood remade, so it looks better. Bloody targets might be wounded, or they might have killed a bunch of your friends.