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I've heard that the whirlwind rules have changed from the ones in the latest codex.
Apparently No longer need a line of sight.
also no longer guess
If l.o.s exists it is scatter + 1D6"
If no l.o.s it is scatter + 2D6"
Is this correct?
If so where can it be found?
Its an ordanance barrage (sp?) weapon, so you never did need LoS.
You are correct in what you are saying, you no longer guess, it scatters D6 with LoS and 2D6 without LoS.
If you look in the BGB in the weapon section, it is described there (I can't remember the page number).
Everything you have described there is in the current rulebook (as weapon rules aren't in the codex) so as long as you have the rulebook and codex space marines you are up to date.
Yea got them, a bit of confusion at my local GW I think, I was told that it previously needed LoS, untill now, (presuming the last couple of months or something) which is why i was also confused. I guess they meant previously meaning since the new(ish) codex n rule book.
Ordnance Barrage Rules are on Page 32 of the BGB