Well that was annoying. After an hour of it starting then my system freezing (which stopped after flashing my laptop's bios: for some reason Battletech and FFXIV when I run full screen made my GPU run really hot until I flashed and patched things), I did the first mission. No spoilers in it, but I got through to nearly the end, only for the last 'Mech, with almost nothing left, managed a TAC to destroy one of my 'Mechs, thus failing the mission, as the objective required no losses. And now I have to start it over. It's going to be one of those days.