Burst Fire is key. As any real life Squad gunner will tell you if you lay that trigger finger down too hard you are just wasting ammo and jarring your fuckin teeth out.

Between 3 and 5 second burst fire is essential unless you are using your bipod then you can go a wee bit longer.

Vertical Muzzle climb is a bitch so keep some light downward pressure on your stick to compensate for this.

Human nature is to keep your sights on a dead enemy for a moment. DO NOT DO THIS! That enemy is dead and is no longer a threat.. Kill the enemy and find another one to kill

Sometimes being entrenched is the way to go if you have alot of good covering teammates but alot of times you will find yourself watching a particular sector with other teammates covering other sectors.
Do not be afraid to displace yourself after taking down 2 or 3 enemies. But always remember to tell the squad leader and other team members when so they can offer covering fire and tell them where your final destination is going to be so everybody knows.

Keep your fire directed where everybody is firing my little darlings..

IRONVALOR