A trait I'm about to suggest would be a way to make AoB possible. Might seem too overpowered, so I wait for your comments.
Addict
Dynamite !
Requirements : Ironman(3)
You are very vunerable for side-effects of pain medicine. This makes you feel really pissed off and gives you around 33,3% chance of going berserk while using small med-packs and 66,6% for large med-packs. Of course, you won't get a healing effect of a berserk pack. And no, this doesn't apply for power-ups, only stuff.
Just thought that idea of berserk-causing by large med-packs in earlier versions AoB wasn't that bad...
Now you'll need to waste four levels to achieve it. Even in regular game, but not always working.
And yes, we'd need another quote. This doesn't fit too well.