This bought up dialogue icons letting me choose which topic to discuss. I started off by walking over and having a chat with my contact Kostov, the leader of the Volgian resistance.
First we reveal that we arrived in the shithole state of Volgia to search for a missing American agent called Kiefer. Betraying his nation one puzzle at a time. Cord's leaving it to ME to spill all Her Majesty's Secret Service's secrets by playing through his mission in a flashback.