Sorry to say but your post kind of directly contradicts mine Vita.

[quote=@Zero Hex]
Reinforced shutters and heavy gates slammed shut one after the other, blocking access points and hindering key points of the facility.
[/quote]

Maybe I wasn't clear enough, my bad. It's not just an outside thing but it also slams down emergency shutters and gates over doors and hallways on the top floor as well, blocking off key points including access to the elevator shaft the SE team took.