How to find all the uniques of this mod, that is hard to find

[OA] Suspicious Coffee: on the coffee counter opposite to the sleeping baraks
Unique Weapons: find the hidden switch under the desk in the lead agents office. That will open a secret door behind it.
The third hidden quest: find the note in the first SEC station inside the filing cabinet drawer light up by the desk lamp, and the later open the suitcase with the crushed scientist ontop. Use the PEN inside the filing cabinet in the office across from the lead agent office