They are not noob at ALL and here is why:
Battle Rifle, Persion is needed you must hit in the head for a 4 shot kill, not great in close combat agaist a AR if you are good you can easly take out an BR holding player if you can get in close but not close enough to be hit. One hit the BR is a one hit kill, while the AR has HUGE delay and will take 4-5 bullets to kill that spartan. The BR is a middle range, long range, Very short range wepon.
Sniper rifle, No scoping is what most prossesional sniping is, you MUST learn this to be able to be a good sniper. head shots are key! The sniper rifle is a good long range short range combat weapon. IN THE HANDS OF A GOOD PLAYER.
noob would be questioning these weapons.