Yes.
Yes.
Yes.
Yes.
Yes.
No.
Yes.
No.
Yes.
If that Warp Talons unit destroyed one or more units this phase, yes otherwise, no.
No.
Before resolving the Fire Overwatch Stratagem with that unit.
After the attack (or other effect) that destroyed the FABIUS BILE model has been resolved. In the event that he is returned to the battlefield while there are still attacks to be resolved against his unit, those attacks can still be resolved.
Yes, as the unit is selected to shoot.
No, as the unit is not selected to fight.
No.