Does FNP allow save rerolls from dangerous terrain failures?

No. See the last example in the FNP description on page 75 BRB.

Gymbol wrote:How do you deal with 3+ invulnerable & FNP units?

With shooting, I suppose just lots and lots of shots. What about assault?

(This may belong in the tactica column.)

You basically hit the nail on the head.

Lots of shooting with weapons that are double T or weapons that have a low AP value.

So for me (Eldar) Its fire dragons, Bright lances, missile launchers, star cannons, Wraith cannons, D-cannons and Harlequins/Banshees as last resort ;).

Or I could throw 15 guardians at em thats 30 strength 4 shots with Guide and Doom, so re-rolls any misses and re-roll any failed to wounds = 16.9 saves to be made. :D (If my mathhammer is correct)

-Rob