Mission 1: The faces need to get access to and from the location, like talking their way past security. Maybe they distract or persuade people while they're inside. They'll also need to handle the negotiation, of course.
Mission 2: The faces work to get an edge over each others' teams and keep them from being able to complete their challenges. They might impersonate people in those challenges, drag security in where it wasn't wanted, call in paparazzi to the location, etc.