First off, let me just say, im proud of you for admiting that you suck horribly and hold your entire team back. Much like a drug addict, youve takin the first step to recovery, and your on your way to being an average player!
As a person who gets scores like 44/7, and 32/5, i can promise you i know what im talking about. Dont get me wrong, i cannot make you half as awesome as me, nor am i going to say you will be sweeping the floor with every scrub to ever pickup a controller, but i may beable to help you atleast break even some matches.
((onto the important part))
1: F*ck with sensitivity. I dont like the standard "3" its set on. Somedays i switch to 4, others down to 2. Its all about what your confertable with. One of the problems to your terrible, terrible, terrible playing might be that you just arnt ment for your sensitivity.
2: Set your killstreaks to "3-4-5", and use hardline or ghost. Chances are, you wont earn anything higher. Thanks to hardline, you can get a Spy Plane in 2 kills. You get a Spy Plane, you know where almost everyone is. ((Sanz the ghost campers ofcourse)) That means you can afford a slower reaction time, because you will know theyer general area, and be ready for a shoot out.
3: Play smart. Dont go sprinting around the map like an idiot. You'll get shot. You arnt Seananners, and chances are, you never will be. ((hes much to good looking)) Pick an area you can defend, prevent flank attacks on your team. Place a claymore at one end, ((the end away from your team)) and support your team from afar. Chances are, dying alot will only hurt your team. If your in the back, chances aree you will die less. Thats the most important part. But dont camp. Camping means you lose.
4: I cannot stress this enough. Use a gun your comfertable with. Everyone says the AK-74U is one of the most powerful weapons in the game, btu i think its a crappy weapon, and i will never be cought dead with it. Im most comfertable with the M14, Galil, Scorpian, or RPK. These weapons and theyer attachments may not be for you. You will have to find what you like. It wont find you. GET LOOKIN SCRRRRRRRRUB~!
And finally
5: No dying. It may seem like im pointing out common knowledge that death is bad, but when it comes to CoD, dying doesnt just hurt your score, it hurts your entire team. If you die 2-3 times in a row, you gave your opponents a free spy plane, meaning your about to die more. Staying back, playing smart, and not taking risks is the easyest way to not die. Dieing is the real enemy. The longer you live in game, the better your going to get, and the faster your skills will develop. Keeps your head down, and dont go in the open.
To sum it all up, F*ck with your sensitivity, Set your killstreaks low, Play Smart, Use a gun you like, and Keep your head down.