If you’re finding the game hard, it gets harder. If you’re finding the game easy, it gets easier. If they die, they’re replaced by vulnerable, weak rookies, who are likely to die and be replaced by vulnerable, weak rookies. What’s snowballing? In XCOM, if your troops survive the mission, they get stronger, tougher and get more abilities, which makes them more likely to survive future missions and get tougher still.
