While trying to recover from playing a full-on game of WRG Ancients Fifth Edition I needed a simpler way to think. My eye cast itself across the myriad of books and rules that line the walls of my library and fell upon a copy of Osprey's Lion Rampant; I thought to myself, "There is a simple set of rules" and began to design the following scenario.
Arthur (Artorius, or some other Briton with a highly unlikely Roman-sounding name) has gotten wind of a Saxon plan to march up the Old Roman Road (no, not one of those arrow-straight roads that criss-cross Britain, a road that an Old Roman once lived beside, you can see his hut in the pictures) and commit a bit of invading. Arthur objected to this as he was planning on levying taxes on those same people later this year and a change of title might complicate the book-keeping. Thus he called forth his troops and set himself to stop this affront to his dignity (and Exchequer).
Arthur and the boys declare "None Shall Pass!"