Revolver

The picture will help a ton on this one.  There are 3 handlers in the middle of a huge box of four guys (also sometimes called a box dominator).  The open space in this offense is in the middle of the field and is reserved for the three handlers.

The Dominator:  They work the disc up.  They are constantly running and cutting and thus get tired quickly if the offense gets stuck.  They are responsible for getting the disc again and again.  They use the space in the middle of the field.

Back 2:  They are essential to the success of the offense as they mix things up and change the angle of attack.  However, this offense dies quickly if we get stuck on the sideline, so their job is to quickly get the disc back to the middle of the field.  Their cuts are up and down the field but they stay very close to the sideline never clogging the middle or allowing their defender to poach.  Generally stay 2-3 yards behind the disc on the sideline.

Deep 2:  They are what makes this offense so powerful and quick striking.  They make tons of continuation cuts.  Whenever the disc is swung from side to side is an opportunity to catch the defender out of position and capitalize by cutting in or out hard and fast.  They do not, however, cut too far into the middle of the field maintaining that space for the dominator.  They stay at least15-20 yards in front of the disc.