I would agree with pretty much all you said, but I still think headshots should be insta-kills for .357 and above. because let's face it, in the game, incapacitation is equivalent to a kill, and while many people have survived headshots, I doubt they were in any condition to keep going after getting hit in the head. A .22 or 9mm might not incapacitate someone especially if they were high on something with adrenaline going crazy, and there was that guy who got hit in the back of the head with a .22 and never knew, but if anything else hits them in the head, the impact force, equivalent to a punch to the head (which could by itself knock someone out) combined with the massive trauma a bullet to the head will cause should definitely incapacitate them. And in the game, all this would need to be represented by would be some twitching on the body for a few minutes until they expire, because people usually only survive a headshot if they get immediate medical care.
I also think that .357 mag should be above 10mm and .45, because .357 sig, 10mm, and .45 ACP all have generally similar wound profiles. .357 and .44 would be similar due to their "magnum" characteristics- that being longer cartridges and hotter loads.
Actually you can keep fighting after you've been shot in the head lol
TRUE STORY-
A close friend of mine was shot in the head and survived and killed the person. This is what happened.
It was late at night and someone knocked on his hotel room and when he answered the door a gun was in his face. The man with the gun proceeded to rob him and his girl. Just as he was about to leave with the gun still pointed at my friend He then pulled the trigger.."click"
No round was chambered and caught the thief by suprise so my friend took advantage of this and attacked him. They wrestled around for a bit and then(as he explained it to me) my friend remembers hearing a loud bang n' everything went black for a lil bit.
The thief ran and my friend ran over to the bed flipped over the mattress grabbed is .45 n' ran out after the guy.
The last thing my friend remembered was unloading his gun into the back of the getaway car. His girl came outside and found my friend unconscious in the middle of the street clenching the .45 still with a death grip.
Later on when he regained consciousness, through the graqevine he found out he hit the thief 3 times that night and was bleeding out somewhere.
This is a 100% true story. I don't lie.
You should see the scar it's crazy lol