Walkthroughs for custom maps.

Has anyone here encountered story-driven maps for two (or possibly more) players, where you would, for example, advance two heroes with different colors and specific sets of skills and spells along a linear route, and carefully consider which troops, resources, and artifacts to assign to each? I'm interested in both simple maps of this format for playing with a friend without having to reload the game for a week, and hardcore maps that require careful consideration of every step.