The poor guy spent his life in special education classes and evidently only has the I.Q. to do menial tasks like empty the trash. I'm not an expert, but I think an Army scout has to be able to understand and remember complex orders and may often be in a situation requiring snap decisions. Anyone in the military should have good situational awareness and this guy did not even know there was a war going on? Someone as oblivious as that is likely to wander into trouble. I think he would have been a danger to himself and others.
And start a rock band, and plan to go to college...