See my CS or QT's in terms of the minimal I want from the character sheet. Yes size matters to me personally and I will not budge from that point of view if it's to be revealed or she doesn't know about it put it in a spoiler box or rework the character. I'm assuming to become a metal bender you need at least some skill in the police department before hand. You don't just enroll unless you can prove your capable or at least that is how this city's metal benders work. They're similar to SWAT or GSG-9 just not as extreme per say.

Edit: Also it doesn't even need to be the full thing it can be hinted at see my character for proof of that there's stuff about his family's past that is not in the CS.