I thought I read a ways back that when you defeat an opponent you have a chance at earning a teamup.
When you do win one if it was below the level of your team it would scale up to its max. So a 2 star would go to 94 a 3 to 166 if your team is higher leveled than that.
But if you were facing a higher leveled opponent, one that scaled off the charts of its tiers norm (such as a level 200 2* wolvie) you would always receive that boosted level.
Was this changed? Or do I not remember it correctly? All I get from enemy of the state missions is a 94 wolverine when he is 200+.