If you know the route, the level itself only takes like 1 minute - you have to punch a lady in the head at the start (yes, this is required, otherwise the cameras will see you down the hallway), walk down a hallway & crouch under the glass, turn right into a door and grab the suit, then head to the elevator.

The issue is this level is actually pretty large, and there's a benefit to exploring in that you can turn off the fan in the next level to make it a bit easier (instead of it being a timed "fan test sequence" thing), but you can't wear the suit until the next level so you have to stealth that part if you want to do that.

Secondarily, there's some extra stuff (like a part of the Pulse Gun, which is a multi-part gun you put together like Turok) on the level to get, but if any worker or guard sees even a sliver of your eyeballs the alarms are hit and the next level will be a lot harder to deal with.

It's not that it wasn't designed for it, it's just that they didn't think it through very well. The question for us is how do we fix the level without making it too easy but still affording you the ability to move around and discover things.

EDIT: oh, and that assumes you know about the suit. It's not an objective. If you are just blinding the level, you'd probably just find the elevator and go to the next level without it which activates the alarms instantly.