The reason that you haven't convinced anyone of your argument and that I keep calling it wrong is that you haven't shown this to be true. You've quoted rules that shown that if you assume that attacks not made in combat are resolved as shooting attacks... but you NEED to quote the BRB showing that hits such as this are in any way resolved as shooting.
Actually I believe I stated that attacks that grant cover saves are resolved as shooting attacks because they're the only things I've seen that specifically allow you to take cover saves.
I keep coming back to the words "shot", "shooting" and "weapon" because those are the rules that the relevant sections of the BRB refer to. If TftD was one of those then you would be correct... but plain fact that it is a special rule which has no 'shooting' aspect other then that it follows the ruleset of 40k, in which sense you could start to argue that combat is shooting because it is also similar.
Unless there is a rule stating that hits not made in combat are shooting then you cannot make that assumption.
And I keep coming back to how you have to resolve the hits inflicted by the marker. There are a large number of things that "resolve as a shooting attack" in the game to represent melee hits outside of close combat that have been mentioned: Blade Vanes, Vector Strikes, Bombing Run. All of these are done in the movement phase, just like Terror From the Deep is as well. Maybe I'm at fault for trying to classify an ability that works similarly to other abilities that occur in the same phase, but I can't find anything else that would work like that AND give cover saves EXCEPT for things that are either shooting, psychic shooting, or resolve LIKE shooting.
Now a question I could counter-argument regarding "hits", is there any other way using the rules to inflict "hits" on a model other than shooting, attacks that resolve as shooting, vehicles ramming (which a special tank shock that only affects vehicles) or close combat?
EDIT- with that I'm out. I've made my arguments, no-one has tried to disprove them so I assume they are correct. As for zion's belief that any special rules similar to shooting must be shooting.... well, he's entitled to his beliefs.
Is and like are two different different things. Something that is a duck and something like a duck aren't necessarily the same thing. Similiarly something that IS shooting and something that resolves LIKE shooting don't have to be the same thing either.
I'm with Tim/Steve.
But of importance, is there anywhere in the rulebook that it actually says Cover save can ONLY be taken against shooting?
I can't find it from my quick search, and in 5th ed that certainly was not the case.
In 5th ed, and I assume in 6th too, Cover saves were a standard save you could take against any wound, except where it was specifically denied (like CC).
Cover Saves are first mentioned in the rulebook on page 18, under "The Shooting Phase" where they mention determining if a model gets a cover save or not.
They are then mentioned again on 26 where they are mentioned in the Assault Phase stating they are not used against close combat attacks.
They also get mentioned on page 90 where you can't take them against wounds caused by dangerous terrain tests (Leaping Down is a Dangerous Terrain test with special rules (pg 95), so it too doesn't permit cover saves).
Now unless there is a third way to generate hits and wounds (as dangerous terrain causes wounds only, I'm not counting it here) on a model I'm pretty sure that it (hence why I initially mentioned it, and why I've had it as a key point more than once).
The only attacks listed in the rulebook that say you can cover saves against are shooting attacks, and while there are shooting attacks that remove cover saves, I can't find any other attack that grants them.
That's why I asked, if there anything that doesn't follow the rules for shooting that grants a cover save (Terror From the Deep excluded since that's the point of contention here, because we can't use a rule that is the hot-topic as proof for itself)?
I can't find anything, hence my belief that anything that lets you take a cover save follows the rules for shooting on some level, even if an actual weapon isn't fired.
I've rolled all these things up into an email to GW's FAQ address. Maybe we'll get them answered in the next go around of FAQs.