I used to be a really bad one, but I've discovered new and interesting ways to keep my ammo up without reloading in seconds between killing enemies.
Like switching weapons.
ProTip for the Modern Warfare Gamers: You do remember that your pistol is still there, every time, every game, and that it's faster to switch to your pistol then it is to reload, right?
Trust me. Next time you're playing, if you're killing enemies without a silencer on, get your kill and then switch weapons. Someone is gonna pop around the corner, and then you can unload on their face faster then they can bring their weapons up. THEN find cover, reload your pistol, reload your main weapon, and get back too it.
Good luck out there, happy fragging.