Actually, I'm not sure that's correct. Unless there's been further clarification, TK and MW are considered 'the same' for allocation. Much the same as Ignore Cover, or Disrupt get allocated in the "normal phase".

Morgan Vening

MV is correct.

My bad. I was confusing this with the 2nd para of 3.2.1 'when shooting at a formation with a WE in it, the firer can stipulate which shots will be directed against the WE'.

However, in those occasiions where MW and TK weapons are fired simultaneously against a shielded titan, this would reduce the effect of the TK weapon wouldn't it?
(As presented, the defender can chose to allocate and resolve the TK hits first stripping the shields, allowing an armour save against any remaining MW hits. The reverse order would see the TK hits getting through).

This I'm assuming does not include supporting fire. I was under the impression that Supporting fire does not happen until all attacks from the attacking/defending formations are complete, and there is still a combat to 'support with fire'

Ausplosions: That's correct. "Involved in the assault" is defined as the attacking and defending units that are within range. Supporting units don't count.