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I couldn't find a topic where this had come up yet, so I apologize if this is a repeat question.

So with grav weapons vs vehicles, there seems to be two sides of the argument

A: Grav guns cause the immobilize result off of TO-HIT rolls. Since no penetration or glance rolls happen, no cover save can be used.

B: RAI would probably still allow a cover save. And personally, I would probably allow cover saves at my FLGS.

Now imagine that a grav hit to immobilize result occurs on a ghost ark.
If you follow argument A, shouldn't the Necron Quantum shielding still be in place? (There was not a penetrating hit)
And would it be fair, that if you follow option B, that the shielding should be technically "popped" ?

You can lose a hull point without losing the shield. With either A or B, the Quantum Shielding will still be up since it requires a penetrating hit to lose the shield.

Grav weapons don't pen or glance.... so you would never lose the shield from them.

im not touching the no cover save thing

Most people I've talked to, including the staff at 3 different gw stores that all run tounies, tend to agree that cover saves are intended to be taken but do see that it's not written that way.

As for the shielding I'd take it like a dangerous terrain fail and leave the shields intact.

mcgroinis wrote:
I couldn't find a topic where this had come up yet, so I apologize if this is a repeat question.

So with grav weapons vs vehicles, there seems to be two sides of the argument

A: Grav guns cause the immobilize result off of TO-HIT rolls. Since no penetration or glance rolls happen, no cover save can be used.

B: RAI would probably still allow a cover save. And personally, I would probably allow cover saves at my FLGS.

Now imagine that a grav hit to immobilize result occurs on a ghost ark.
If you follow argument A, shouldn't the Necron Quantum shielding still be in place? (There was not a penetrating hit)
And would it be fair, that if you follow option B, that the shielding should be technically "popped" ?

or C: RAI a vehicle does not need to suffer a glancing or penetrating hit to get a cover save.

Option C lets you keep your shields and get a cover save.

Except the cover saves have nothing to do with the shields. Shields drop on a pen, Graviton doesn't cause pens.

ah, so option C it is!

Though the flat ruling of Graviton not causing pens does open some validity to the argument on the RAW side of things.
...and that feels like a can of worms

But, if you're standing across from me at a game table:
"Alright, i rolled one 6, that's a possible glance/immobilize...take your cover"

 Imperator_Class wrote:
Except the cover saves have nothing to do with the shields. Shields drop on a pen, Graviton doesn't cause pens.

But they DO cause a result from the Penning table. I can see both sides of the argument, but I think that either way you go, RAW or RAI, it needs to be all or nothing. Either vehicles don't get cover, and the Quantum Shielding doesn't drop, or vehicles DO get cover saves, but Grav Guns can eliminate the shields.

EDIT: Edited to clarify who I was responding to. Sorry Imperator, wasn't trying to call you out specifically.

I still feel that grav guns dmg is done exactly like a dangerous terrain dmg result and should be treated as such.

No cover, no pen, still can take invuns.

Quantum shielding says if you suffer a penetrating hit you lose it, since you dont suffer a pen but just an immobilised result quantum shielding stays up

Grav guns don't pen or glance, they have a rule that takes effect instead of the normal rules for vehicle damage. Shields stay up.

Regardless of cover saves, let's look at it like this:
Have you taken a penetrating hit? No.
Therefore, the only possibility is that the shields stay up.

Doesn't matter that it uses the pen TABLE, just that it doesn't cause an actual pen.

And cover saves have nothing to do with anything in terms of these shields, thats a whoooooole other topic