Hello again, I came up with an idea that seems to please someone who makes gun reviews on youtube. (Melone Graal)
The Damage Tester should have an HP mode that shows how fast the weapon kills. After the HP reaches 0 it restarts after 2 seconds (so that the speed of the weapon is clear).
I hope it has no failures and that it works when the gun is repaired and when not,
Sorry that this thread isn't very detailed and long but I hope the idea has been clear.