well, if you do decide to use this, its very simple. just open a new text file, put in-
#loop
~0.1
oniel setdammage 0
goto "loop"
save it "oniel.sqs" in your missions folder.
in the mission editor, name your guy "oniel" and in his init field, put in-
[] exec "oniel.sqs"
what will run the script, making his dammage at 0 all the time
persoanally i prefer using scripts to the in game editor if i can avoid using it cause it reduces clutter and has a wider scope of what you can do with the edtior than if u just used the ingame one all the time, but it is very hard to learn how to do sometimes so sticking to the ingame one is safer and easier