Bolt Action scenarios

Just had a quick look at the scenarios in the rulebook - the only one I think you'd really need to change for 500 points would be point defence - that's the three objectives one. The others seem ok. Top secret or hold until relieved should be absolutely fine. The others might be a bit difficult but I think would be playable.

Just drop point defence from three objectives to two.

What about the one where you have to get off the table?

Envelopment. Yep, that would work, although I don't know if we'd want to allow outflanking on a narrow table - so then it's a pretty hard slog for infantry to make it across.