Personally I think it's always better if you just create a character you like, allowing the possible consequences of that character's interactions to creep up (or just explode outright) as the team starts to come together; Still Haban is...:

...One of many remnants of the final days of the Ten Year War, Haban is a disillusioned guard who is still (somehow) hanging on to the final few threads of life left within him. Crippled, distrusting and somewhat fragile, he maintains an almost allegorical similarity to his motherland - not including his lacking patriotism. A bit of a wild card overall, the second-born-son has very little need to risk himself for much of anything anymore...but that's not to say he lacks a conscience. 

I'm thinking on the fly when it comes to Haban's place in the world, so there isn't much I can say about his motherland at the moment; they were willing to throw child-soldiers into the mix in the closing years of the war, and their leadership is more than willing to assassinate one of their own, so...I suppose the best way to sum them up would be: "Soft on the outside, but with an arsenic filling."