Playing CoH/V shortly after release (and through to the official servers shutting down) taught me a lot of good lessons in my early 20s about teamwork and team dynamics. The way I saw it, if I was joining someone else's team, it wasn't about what I needed; it was about making things easier for the team leader and the group. If I wanted something for myself, I played solo. Otherwise there's nothing wrong with making polite suggestions about increasing difficulty, mob sizes, elite bosses, etc., but to openly express dissatisfaction about team orientation, difficulty, etc. is counter-productive. If you don't like it, leave the team. Otherwise be part of the solution.