Looks alright to me, although a few points I question a bit.

Firstly, what is the practical use of a halberd when he has a pistol in his coat? Sounds extremely inefficiant; an axe would chop through things much easier if that's the use and if he's trying to kill folks then he would be as effective the guy from Indiana Jones swinging his swords before Jones shoots him with a pistol.

Now, if it's an enchanted halbred of sorts, which would mean it would be nice if you explained how it would have been enchanted and by whom, that would make more sense. But a typical halberd when combined with modern weapons makes him look rather silly when I visualize a mercenary.

Secondly is a detail, just food for thought. With such a passive ability, it would seem that nobody would actually notice his power, even at a young age when he's still exploring it. I would liketo know how folks can consider him a freak when he turns off his hearing and savors the taste of something; it might be a little odd that you're trying to talk to him and he completely ignores you, but I have a little difficulty understanding how that would be a dead giveaway for supernatural powers.

Other than the bits which I probably thought a little too much about, I'm fine with it and it's up to Cuccoruler.