Im on my first play-through of the game, and having not played the first game, its hard to tell how much influence your decisions are having. So far I recruited the Doctor who was curing the plague in Omega without any problems. The next guy (cant remember names so bare with me) was building some sort of supersoldier as part of his 'legacy'. He ended up getting killed so my team extracted his soldier who was still in its stasis tank. Also managed to get Archangel, who was also nearly killed in the process.
Is that pretty much how its always turns out or can other decisions vary the outcome and to what degree? Curious as Im pretty new to the series.