Say that Blue team gets to the boss and ends up doing 50% of the damage to an enemy that is 150 points. So they have just secured 75 points for their team. So if red team were to run in and try to start doing damage, they could end up getting 30% of the damage done of the remaining 50%. That means that Blue team got 70% damage and Red team got 30%. That breaks down to Blue team getting 105 points and Red getting 45. If Red hadn't of put any damage onto the boss, then they would have gotten 0 points and blue would have gotten all 150 points. So each team has a reason to do as much damage to the boss as possible and to kill the enemies near the boss so that they can't do as much damage.

You will also no longer have people hiding behind rocks and just waiting for the boss to get to 1% before jumping out and actually doing something. If a boss appears, you want people to immediately start firing upon it and trying to kill it as a team. As it stands now, there is no reason to shoot it at the beginning. When playing on A.R.C, and I see teh Warden Eternal appear, instead of rushing over to fight him, I will just stand at a distance with my br and just wait and wait and wait for people to take down his health so that when it gets to 1% I can fire my shots and hope to get the kill. The Warden stops being something that you have to rush in and kill and is now something you just have to shoot once in order to claim 100% of the points. I find that dumb.