The mission with GTSC Plato w/ Avenger prototype, first player encounter with Shivans.
The Shivans are targetable, they shouldn't be. 'nuff said.
Less cut-and-dry: the first wing of Vasudans (Aries?) really demolishes my wing, resulting in Delta reinforcements being auto-called in. I suspect that the Osiris bomber has Prometheus turrets...
Using FSPort 3.0.3 with FSOpen 3.6.9-RC7 and mediaVPs. I originally had the mVPs in their own mod folder, but I copypasta'd them into the main directory in order for the graphical goodies to be used with FSPort. Before that, neither of the above two issues were present.