There are sure to help you get to Prestige and back again.
Those Who Fire in Bursts Stay Alive
No matter what gun you use firing in bursts help you take down one enemy quick and finish over another right away if you have to. Plus it saves on bullets so you don't need to reload as much.
The Radar is Your Friend
Weather you are lost or need to find enemies this always works. Use it to your advantage; get the jump on your enemies and those annoying snipers.
Know Thy Map
You have probably seen this before on other multiplayer games but knowing your map gives you an advantage of that poor bastred who doesn't know where he's going. What you want to know is where the sniper's like to go hang out, which corners you can camp at easily and things like that.
Make Sure You Have the Right Perks for the Right Gun
This has a lot to do with customization (which I may write about later) but make sure, that you don't have a perk that doesn't give you any benefits for you or your gun, also make it to match your style for that map. If you are going to rush, make sure you pick rushing perks, and visa-versa.
Play With Friends
Well not really doing with the game, but playing with your friends has another level to the game and will help the grind to 55 be easier on you.
