So... basically, Musk turned up at a studio and threatened the devs with a gun (which antique or not, could have been loaded and functional - shooting with antique guns is a thing) to make them put him in the game?
I know there's a massive cultural difference around guns between the UK and the US, but I'm genuinely struggling to see how "a man has turned up to our studio with a gun because he wants us to put him in our game" doesn't warrant a call to the police.