John Dallman
Hero
It's not that hard to generate enough that players start making mistakes. The trick is doing it without confusing them about what the characters can see, hear, and so on, which is unfair. Time pressure and a lack of understanding of what's at stake will often produce errors: that's how Chicago got destroyed in one of our games.People underestimate the fog of war in the real world and I would think it is really beyond the capability of a referee to generate the kind of chaff that one would encounter in the real world.