Central Security Office (C.S.O.)
31: In the “between-ceiling” above Slater’s office, on an electrical box.
Reception Hall
32: In one of the lockers of the employees’ room, in the maintenance corridor leading to the gathering area (where Jim is).
Meeting Rooms Area
33: On a drawers in #C110 locked meeting room, on the 5th floor near the entrance to the Meeting Rooms area.
Exhibition Hall
34: Near the Security Hub inside the security room on the second floor of the Exhibition Hall, where you fight Marchenko.
Executive Lounge
35: In the V.I.P. room where Brown & his delegates are, on a service cart.