I ought to have mentioned his recurring denigrations of his own hobby -
"Let's not kid ourselves. Warlight is a game. People play more for fun, leisure or out of habit",
he says, as if that is a revelation. This links in with my observations of his superiority complex. Sure, he is playing warlight just like all the other teenagers, but he never forgets the chance to remind himself that he is better than the rest of us, in this case, because he
knows it's just a game, unlike the unenlightened trilobites he deigns to engage with.
This sudden excess of self-deprecation, if by proxy, also affirms my observations that he is unconsciously over-correcting for incipient self-criticism.
As the individual is high-functioning, and demonstrates no abnormality by my definitions, I elect to make no diagnosis.