Spoiler ahead for anyone who has not entered a science lab. If you have ever opened the front door, you are fine to read on.
I cut the front door open with an acetylene torch.
By the time I had finished, the turret in the entry hall had shot me completely full of holes and was out of ammo.
I would likely be dead if not for the MBR ceramic vest.
Why did this happen?
It seems like the turret was firing on me the entire time I was cutting the door (which took several minutes), but my poor stupid @ sign decided not to stop and ask for new orders.