It was a common practice for rival Viking Warlords to raid their opponents at night and attempt to burn down the Great Hall, symbol of the Warlord's power. Here's a battle using that scenario found in Captains and Kings.
What you know:
Before the battle all you know is the location of the Great Hall. That's it. You pick your force and enter the table. Once you have finished your first move the three PEFs - Possible Enemy Force markers - are placed at random.
You then roll for visibility versus the Rep of your Leader. The better the leader, the less the visibility, as this reflects his intelligence in picking a good night to raid.
Once that is done, the game begins,
Lucky for the raiders the 3rd PEF was resolved as nothing.
Captains and Kings includes a set of man to man combat rules as well as the unit sized combat. That's what I used in this battle, giving it a heroic feel to it. Now that the Warlord has secured his homeland it's time to go raiding.