I'm not actually a fan of how the battle high system works. To me, when I first heard about it, I figured that it would be better off as the direct opposite.

Instead of the people who were already doing good getting the battle high and continuing to slaughter the opposing teams, it would have been more interesting to me if the opposing teams got it instead. Giving the boost to the weaker teams would then make the #1 team a target.

This sort of strategy happened in Assassin's Creed multiplayer where the first person to come out ahead and get a kill got more people targeted to them and they had to survive against more people. Once they died, they were balanced again.

It just seemed to me that it was just a kind of death fest with no real strategy besides the whole "Don't cross the line" thing where all melee got hosed. I would prefer a system where if the ranged dps are dominating, it turns the tables against them. If they still win out, they get the ego boost and if they lose, the buff goes to them next.