Psychic Hoods only work on powers that use a Psychic Test. The rules for them state that the target must first pass the psychic test before you use the Hood.Issue 1. Do the template weapons resolve over the marines, even though the fell short of there designated target
No. Page 17 of the rulebook states that any weapons which are not in range of any models in the target unit automatically miss.
Issue 2. Do the singing spears get to attack still? (range 18", s9 against vehicles, assault 1). These weapons were in range.
Yes, the Destructors miss, but that doesn't stop the rest of the unit shooting.
Issue 3. With the jet-bike models, where is the template weapon protruded from? In the BRB it says from the base of the model, so would that be from the edge of the hull of the bike, or from the actual "flying" base? And are they measured from the middle, or the edge if it is the "flying" base?
Not 100% sure, from the rules I would think the edge of the flying base.
Issue 4. At the same time he attempted to psychic hood my warlocks. Can warlocks be psychic hooded? It says in the Eldar Codex there powers are available permanently, and therefore do not need to make psychic tests to use them.
Hope this helps
EDIT: Heh, that's what I get from trawling through 20page long threads