Definitely Not Evelynn
Just imagine, while stealth Evelynn will hide under a cardboard box, while not stealth she will hold up a paper tree (or something) kind of like something that come straight out of Paper Mario. It will be so comical it will be awesome! Even better if the enemy has true vision of her or even the enemy cannot see Evelynn it will be funny that she sneaks past them with a cardboard box as a hiding spot just like Snake does it =P