Watcyn needs all the help he can get.
'There must be several of these captains walking around, but defeating just a few will send enough of a message. Between the two of us, that shouldn't be too difficult.
'I'll let you decide how you want to approach this. When you are ready, let me know.'
Let Rendal know when you're ready to enter Gaervarad.
He waits for you outside.
Rendal believes that defeating a few captains will cause them to have second doubts about hunting down deserters.
You should defeat captains around Gaervarad.
You have defeated enough captains.
You should talk to Rendal.