I'll spread my wings and learn to fl- oh, crap, sorry, I didn't mean to knock that over. I underestimated my wingspan. -- TheDragonsFlame
The thing about wings is, they're the largest part of any flying creature's anatomy. They have to be. In order to independently lift one's own body-weight, most of that weight has to be doing the heavy lifting. And if you're flapping to do it... well... there's a reason why the largest flying birds in the world employ the strategy of gliding for most of their flight time.
And flight muscles burn a lot of fat. You can't just paste wings onto human-like arms and expect them to act like an angel's. For a start, the leverage is all wrong. And all of these arguments were cycling around the engineering sections of Project Kymera. A combination Black-Ops and Sub-Rosa scientific project to create the Enlisted Man. Again. And like all projects of its ilk, it was doomed before someone even thought it was a good idea.