The FAMAS with the red dot gives you extra accuracy over the iron sights and that can be the difference between life and death when facing a fully automatic assault rifle like the ACR. Often whoever lands the first bullet gets the kill. Slight of hand pro is meant to help with that quick target acquisition. Scavenger is generally not needed with burst fire weapons because you are generally more accurate with them and aren't spraying bullets to get a kill. Stopping power makes the three-round burst a one-hit kill at all ranges. Ninja allows for silent approaches and gives you the ability to flank the enemy if that is your play-style. The M9 is the secondary of choice. It has a very fast swap to help you in close quarters situations and a larger clip than the usp in case you run into more than one enemy.