Ever since he was kidnapped by the rebels he has been subjected to unimaginable atrocities. In the quest to create super soldiers to combat the UCE the children are pumped full of pharmacological super-cocktails, trained relentlessly in guerilla tactics and combat, flooded with propaganda, etc.
At the age of 9 he is already an expert marksmen and working as a sniper in some of the heaviest battlefields in the system. He is also already jaded beyond belief.
Thousand yard stare? Pfft, Nate has a thousand mile stare.
He sees right through you.
And everyone behind you.
Say a prayer for Nate McClusky.