Severing the Lines

This is one of the three quests you will receive after completing the "Arrive Unexpected" quest.

1. Speak to Basim

Basim will be waiting for you on the bridge near the Briggworth garrison.

2. Sabotage Briggworth

To achieve this objective you have to kill two commanders and destroy four boats in Briggworth. When you do that, this quest will be over.

Boats burned / There is a commander at the dock

The boats, as it is not difficult to guess, can be found near the river. To destroy them shoot from the bow in the red jars standing on the boats.

Near the river you should also come across one of the commanders you have to kill. If he is standing near the boat, you can take advantage of this opportunity, because the exploding boat will do a lot of damage to him.

There is a commander in the keep

The second commander is somewhere in the keep. If you haven't been detected there is a chance that he is in a room that you can get to by entering through a window on the north side.

Then all you have to do is sneak up on him and quietly eliminate him.