Rainbow Six Siege has a new trailer available explaining the operator system.
Operators are what makes any Counter Terrorist Unit and you will get to choose each of them individually before assembling a team. Any operator you choose will not be available for others though, so planning ahead will be crucial.
The new trailer shows the many roles these guys can play, depending on the situation. Either breachers or defenders. The game has 20 operators available to choose from, making up a total of five CTU units.
The latest episode of Behind the Wall developer diary is also available below and takes an even deeper look into the various team compositions and how different operators can fill different roles.