After Aiden takes the remote from Tobias, Aiden goes to the Bunker Island, and sees that he has to power up the generators. After powering them up, Aiden goes to the Bunker's entrance and enters the Bunker with Clara. Aiden searches the IP address from Damien and finds out that the IP is located inside the Rossi-Fremont as the mission ends.
Reach the bunker island.
Power up the generators to restore the bunker.
Enter the bunker.
Search for the power controls.
Power up the bunker.
Aiden looking at the giant screen, revealing the source of the IP address.
The same view of Aiden looking at the screen, with Clara in the background.