Hey Guys:
At the rear on the main floor of the Crimson Raiders HQ, behind all the washing machines is a locked gate with a case behind it. The entrance mechanism can be pulled and makes a litle noise but I can’t seem to find a way to get in.
Can anyone tell me how you get into/past that gate?
Thanks a lot.
It’ll take care of itself as you play through missions. 
It’s part of the mission “Bearer of Bad News”. I don’t remember who gives it, (I think Lilith) but it unlocks after the main story mission is completed.
You’ve already got your answer but, as a further note: any time you wonder why you can’t get in to some area or pick up some object that looks important… just keep playing! 
I’m gonna confess, I spent an embarrassing amount of time searching all over Sancturary for the key or button to that safe before the story took me there. 
Me too, pal. Me too.