[X] She's wrong. If you can be lifted up, and so can others, then Krieg is not irredeemable. To be lifted up by the Emperor does not mean you cease to be Krieg, it means that Krieg is that little bit less stuck in a century of mud, heresy and treason. You are Krieg, and she is Krieg. Keep the mask. Let it be the beacon that call of Krieg forward.
[X] Accept that you may not be exactly Kreig anymore...and take off your mask. Of course, it's still very muddy and...there's lots of grit on the wind, so, you'll put these goggles and maybe a cloth cover over your mouth and nose!
[X] You're still Krieg, just... Krieg construction and repair equipment. Tanks are worth a lot more than a guardsmen, sure, and the opinions of their machine spirits are more important than the desires of a guardsman, and they have way more legal rights, but they're still part of Krieg!