i think they should delete all of the excavators in the map, because when like three activates and i couldn't go anywhere it was like circle and all the excavators block all exits.
And at the time i didn't have the hack tool and when i was just about to go hack the control panel i saw all exits blocked.
Or like no need to delete them but like put only one at the time on, not like all of them.
Or just delete the danger barriers.