Don't take time to gloat about that last shot you took. Changing names when you are a ghost to inform your tea where the last opponent is located is cheating. Don't whine about teams. Don't blame lag for your death when you kill someone and call it skill. LPBs are best at sniping and using the shotguns.
Latency is a make-up of Internet connection speed and server speed.
Ducking does increase accuracy, but allows the enemy to hit your head easier and slows down your movement speed. Carrying the FN M249 Para will slow your run down to a walk, so no one can hear you. To walk the fastest without being heard, walk with the knife out. I hope you have gathered a lot from reading this manual. I know that just writing it has improved my game.