No Don should carry a gun. You have your bodyguards, so if anything happens, it won't be traced to the top.

Vito doesn't get shot.
Michael doesn't go to the hospital.
Michael doesn't get smacked by McCluskey.
Michael doesn't kill Sollozzo nor McCluskey.
Michael doesn't escape to Sicily.
Michael doesn't have to come back to become Don, because Vito is in good health, (since he was NOT shot.)
Sonny never has the chance to become Don.
Sonny doesn't die.


Hmm, huge plot hole there.

WTF kind of film would that be? We'd have nothing to talk about on the BB!