A single battle alone does not win a war. It's a whole series that is what will make or break a conflict. So, for those looking to play out a longer campaign using the One Page Rules systems, you're in luck, as they've released a new set of Campaign rules over on their website. You can also sign up for their newsletter and read about other things they've got going on.
From the website:
August has been a long month which has given us time to steadily work on a bunch of new things for you guys, and today we’re finally releasing everything!
Hold onto your seats because there are some pretty big changes to the core rules as well as a couple of other cool things…
Firefight & Skirmish Campaign Rules
To start this off right we’re extremely proud to announce that our Campaign Rules for GF: Firefight and AoF: Skirmish are finally back and available for free!
With these rules you can play a series of connected games during which your warband of fighters levels up, sustains injuries, finds treasure and ultimately competes with other warbands for glorious victory.