I agree with the two above. Perks in a video game ruin the gameplay. Everyone should have the same abilities. Perks are there to help the noobish 8 year-old kids, so they can compete with the older gamers.
This game should be skill based. No strong aim-assist (Call of Duty). Recoil should be close to real life where each gun is different. Tight shoulder fire patterns (not aiming down the sights). Tired of unrealistic bullet spread while firing. It should be like Farcry 2. Where the bullet spread was tight while firing from the hip. In Farcry 2 you fired your weapon from the hip, not from the shoulder like everyother shooter. Not aiming down the sights.