What you haven't seen is the story behind the battleplans. Skragnir's Skallawags race against the Order of the Charnel Lady to find the late Overlord Grimni's Letter of Marque and claim a seat on the Reaper King's council. The only way to find out what happens is to read my mediocre fiction (MANIACAL LAUGH!!).
In it you will also find some extra campaign rules to help tie the whole thing together.