Instead of seeing him physically, a type of security room with a wide array of cameras shows different parts of the area. Then in a one or few screens, you see SCP-682 busting through the wall chasing guards with it's tail thashing back and forth shaking the entire facility, and then the camera is destroyed due to the damage of the tail. For a more creepy factor, SCP-079 will cut all video transmission and replace most of the vidio feeds with his avatar, also with 079 warning the player to not intervene with it's progress.

I want to be able to visit 682's room and see how it is. Later, when you piss off 079 and shut off door control and put it back on, you can return to 682's room and 079 will open his cage and try to kill you with 682. Alternatively, he suddenly decides to release 682 while you and some soldiers are in the room with you and you can see the feud.