[@AwesomeZero5]: Hm... Okay, let me see here.

Well, there's a few problems with that posited premise—mainly that the RP takes place in 2034, and that Rifts appeared in 2024. Using that date as a basis, the character would have to have been... 30 in 2024? And have been to college from 2012 to 2016, I'd guess...? Hm.
Yeah, honestly, I'm not exactly buying it. While I don't think it's unthinkable that the US did some secret science-y shit during WWI-Cold War era (hell, I think most nations were), I still think you could find a different excuse that might work better in lieu of that. A forced retirement is fine, but political conspiracy isn't exactly a theme I want to tackle all too extensively in the RP (at least, not as far as you might be expecting).

As for the second point... Logically, I could see a person being unable to [i]relax[/i] after having had to live more or less their entire lives in paranoia about what might be lurking around the corner, but to be so broken to the point where you [i]must[/i] be in a combat scenario... It feels slightly off to me, and I'm not quite sure why. It might be better to shift towards more behavioral tendencies developed as a result of these decades of living through hell, in my opinion? Rather than "the only place I can go in order to stay calm", maybe... "The only place where I have left to go"? I dunno, just giving suggestions.