Small thing, but still - Update the Advanced Training Hall loading image.
What the image shows: http://gyazo.com/2d1901408787fedc9969fe9201cec8bd
What it should look like (from a different view, though): http://gyazo.com/fa353184b1d7dd00c33d20acf7629a95
(The vials were reskinned in-game, but not on the loading image.)
Yep. Old interface stuff remains here and there. Your loadout analysis uses the old stat bars, for example. It would be super cool to fix that too.