At this moment, the Revolutionary movement is just a collection of hushed whispers and it has no real establishment. The resistance has no formal base. It's leader, Kaidan Malcador, is just now calling his most promising revolutionaries to gather and get the cogs turning. The player characters should know names and have a rough idea of what they're about. But this will be their first mission together unless of course you have consorted with other players to build past relations.