In a canon-divergent AU where the Scarif mission failed, Cassian -- the only survivor -- wakes up alone in a hospital bed, months later. He finds out that Draven knew the mission was going to be a failure, but instead of pulling them out, Draven set Cassian up to take the fall, leaving him persona non grata in the Alliance. His team is dead, his honor is destroyed, and he decides there's nothing left for him -- except for him to get a little satisfaction on his way down. He makes a list of names of people who need to pay: one for Baze, one for Chirrut, one for Bodhi, one for K-2, one for Jyn.

The last name on the list is Davits Draven. That one is for him.