The reason this sucks so bad is because not everyone has people to play with. I usually solo the nightfalls because my friends and I always have conflicting schedules. Having to solo a nightfall means you can't afford to go Rambo on everything (although I'm sure some of you are going to say you do, we all know you don't), it means you need to find cover and play it safe. It isn't being a vagina, it's being a team player in the sense that you are the team, and you want to keep the team alive.