Hm... he could be schizophrenic. That's a good ticking time bomb aspect of mentality, if there were one.
As for the Achenaran Imperium reference... basically, it's the alien race of which my main character is a member. Since they possess advanced genetic engineering technology and like to augment their soldiers, there's no reason for them NOT to introduce the psycher gene to every single combat soldier if it enhances their performance. And well... Achenaran troops are powerful enough already, they don't need to be psychers too.
There is a possibility also that your character was... altered, in some way, by Zikaren biotechs. As for which way... I'm not entirely certain, still.