I'm afraid I'm deeply dull, because I don't see anything interestingly lateral to say about that 8-( I don't see that it makes a difference if they're overwhelmingly better armed because I made a mistake or because they were just overwhelmingly better armed to begin with, and I don't imagine they're going to be sympathetic if I say Oi that's mine, otherwise they wouldn't be invading my citadel to begin with.

Except that I know what the weaponry is. But since you haven't told us that I assume it isn't vitally useful. I take it it isn't interestingly remote-controllable.

So I think I do just what I would have done anyway, which is fight as long as I can and then either surrender or kill myself depending on the nature of the enemy. I hope I'd have put some pretty damn useful stuff in the inner fortress, but it's a bit late now if I haven't.