When you are fighting them and flee, make it like cutoff so that you have a chance of succeeding/getting by.

When both centurions are in battle, allow anyone to pass by. How is it that the two centurions can both be targeting one person with their attacks, completely stop that person from fleeing in either direction, and still have time to block the group of 8 standing nearby from walking by.

The biggest thing centurions do is to discourage people from logging in the sole member of a cabal when they know it is Empire's portion of the day. Unfun for both sides (less lonies for the hoard to hunt).