What's the Point of a Campaign World?

A campaign world gives the DM the ability to try different settings (tropical swamps, arid deserts, highly magical areas, suppressed magical areas, underwater kingdoms, sky-realms etc.) while allowing the players to adventure there without rolling new characters.

For radically different settings which would logically distort the gameworld too far (cars and aeroplanes; spaceships etc.), the alternative PMP, and the Inner and Outer Planes serve the same function.

Non-combatants

Moving house soon (to London) so things are quiet on the gaming front and time is in lacking, but here's a short post:

Non-Combatants
Any living thing will fight if cornered, so for non-combatants the following is suggested for when that happens:

1. Fighters receive multiple attacks as if the non-combatant had less than one HD regardless of how many it does have,
2. Attacks by the non-combatant are at a combat level of 0 at most (less if particularly weak).
3. If the non-combatant manages to strike a combatant figure, the latter may save Vs death and if successful the damage is non-lethal.
4. Non-combatants will only actually make an attack attempt during a round on a roll of 1-3 on a d6; otherwise they just panic and/or make ineffectual thrashings of some kind.