In this case we are using board six an old Squad Leader board…Steve claims that it is a rare board.
Board 6 works for ASL, as all boards previously published for SL (in this case, for CoD).
Numerous ASL scenarios use board 6 - beyond the adapted SL ones - so it isn't a rare board at all.
I don't see how the idea that board 6 would be "a rare board" has any bearing on Orchards and LOS rules application.
"Steve" seems to be very ignorant of the rules, as so many of your friends who make assumptions about how to play the game from fuzzy considerations which hardly ever refer precisely to the rules (i.e. by citing rules references).
They all seem to function the same way, which is quite strange: so many wargaming buddies, but none who takes the time to argue from the rulebook...
I think I read that you did manage to have a rulebook handy.
It would really be helpful that you indicated the rules paragraphs that you need help to understand.
Otherwise we are left with a lot of guesswork to answer you.
And I would suggest that you don't mix up your questions with your friends' arguments, when they don't refer to the rulebook's paragraphs.