Non-responsive answer: if he likes both space/NASA stuff and minecraft you should get him a copy of kerbal space program.
More substantively: gifted and asd are not mutually exclusive. It is possible for him to be both. As a non-expert, his difficulties sound more in line with gifted type personality traits than with asd. I mean, he's right, tie fighters don't have shields, so the other kid was playing wrong.
That said, if you have concerns it is worth it to get an evaluation from a psychologist who knows gifted traits. With my DS5, we had him tested because of very similar issues.
