You can force your way into the recreation base.

[glass fractal]

Jump to the window on the left side of the main entrance, you can infiltrate the building by force.

You will not get the necessary classified equipment because you are not entering through the proper procedure,
so the sequence break is impossible.

Btw, Note that advancing the mission to this stage causes an ambush squad to appear in front of the facility.
I encountered them when I returned to the facility once to resupply ammunition before recording.
The ambush squad did not exist before this stage.