Kyunn do you matchmake solo, or with a bunch of friends?
Suppose if your with friends you can always out rush them to the power weapons?
But taking it basically I do get what you mean, it can be annoying if a team grabs them all and gets map control straight away. But thats Reach for you, I have been on the receiving end of that, but have also been in a team who had map control practically straight away, swings and roundabouts really.