Wings of Liberty had 3 "split" missions, where you had to choose sides:
- Safe Haven / Haven's Fall, where you had to pick between Dr. Hanson and Executor Selendis
- Breakout / Ghost of a Chance, where you had to pick between Tosh and Nova.
- Belly of the Beast / Shatter the Sky, where you had to pick between flooding the tunnels, and destroying the zerg aerial platforms.
Playing the second campaign mission in Heart of the Swarm, I ran into Nova, who off-handedly remarked that "Things might have been different if you had helped me with my Tosh problem", apparently still bitter that I liked the Spectres more than her ghosts on my last playthrough of Wings of Liberty.
However, it's entirely possible to own Wings of Liberty and not have played the campaign (or otherwise have no campaign data). In that case, what is the presumed outcome of these missions? Or, alternatively, does Starcraft not actually pass this along to the expansion, and assumes you sided with Tosh, etc?