The C4 detonator is in the room just south of the Operations Room, sitting atop a desk. To reach that room, players will need the Cutting Tool found outside the Art Room on the second floor of the ...

C4 Detonator and Battery locations in Resident Evil 2 are your next objectives after you've visited the Courtyard and Art Room. Doing so allows you to reach the third and final Medallion location ...

In this room is the C4, and you can use the detonator with the C4 to arm it. Stand back behind the nearby bookshelves once you’ve armed the detonator, as it’ll go off in exactly 10 seconds.