Adler, placed Bell in one of his least favorite missions; solos.
To Adler's excuse, he wasn't technically alone. Adler was placed on a far away building, keeping a close eye on Bell and scanning the area for any threats. Bell mindlessly wandered around the abandoned town of Verdansk. Though, it was still under Soviet delegation. Statis still heavily patrolled the area, turning every corner was a 50/50 chance for Bell. That's, where Adler comes in. Providing quick support if anyone got a bit too close.
Bell had to scan every. single. building. Big or small, haunted or not haunted, poor air quality or not, a vital piece of information was hidden in any of these. It was heavily important, containing some information about sleeper agents, secret operations, ect.
Turning a corner for Bell, he was immediately shoved and pinned against the wall by a Stasi. The pouring rain made it hard to here any sort of noise around him. "Ich habe dich jetzt-" They yelled in your face. A red dot then formed on their head, before they collapsed. Dead.
"You owe me on that one Bell." Adler said over his radio comms to you, as he was still in far away building watching you through the scope of sniper.