[Psitticine]

1 and 4 are related to a known bug I hope they've got fixed in 1.05 or whatever they're running now. Certainly in time for the upcoming patch, in any case.

In a nutshell, if units lack shielding, the whole stack is bLasted when the first one goes. If they do have shielding, then things go as they should.

For #2, yeah, sounds like a bug! Are you sure though that the same plasma missile launcher is being fired? IOW, could they be firing half every turn instead of all every other turn?