Quote Originally Posted by Gideon Falcon View Post
Hmm, parts of this could actually play into his established character- he's basically a very high functioning autistic, so he's used to not playing the same game as everyone else; not on purpose, but just because he thinks differently. In social situations he fumbles without noticing because he simply isn't playing the roles and games we expect of each other, and that unabashed practical thinking can be shown to contribute to his ability to look past to the 'long game' instead of falling into the traps of lesser tacticians. At the same time, removing the social context from his interactions with an enemy also removes his handicaps, as the cues and tells of an army are much less esoteric to his mindset and let him grasp how to really pull one over on them.
I'd be very careful about this. Depending on where exactly on the spectrum they fall, they'll have a stronger tendency to fall into particular lines of thinking and at the strategic level, knowing the psychology of your opponent is very important.

If your character can't do the same and adapt for his opponent's way of thinking (either because he can't or is unwilling), then he's little more than an tactical RPG AI - once his opponent has him pegged, he's not going to do very well.

In my opinion, a better way to show different thinking is to use tactics and strategy that isn't in the 'proper' way of warfare, due to ignorance (wilful or accidental) of cultural or societal norms - a modern example would be not following the Geneva Protocols, a medieval example would be launching an attack on a holy day.

If you don't want to have him that severe on the spectrum, then have him more focused on deception and being super sneaky. Try reading up on modern disinformation campaigns for how elaborate they can be (Operation Mincemeat is a modern example, the Thirty-Six Stratagems for something less high tech), which can be only compounded with D&D magic and undead.