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MOUSE SENSITIVITY
Many people refer to FPS gaming as "Twitch" gaming. High speeds, fast reaction times and a twitch of your mouse for the win. Problem with high mouse sensitivity is how easy it is to over mouse and miss your target. Many of the best gamers found that reducing your mouse sensitivity improves your game play by reducing over twitch. Its easier to thread the needle if your aiming isn't all over the place.
If you've ever seen Fatal1ty play, either in person or through a video. In order for him to do a 180 degree turn in game, he has to pick up his mouse off the pad, move it over 2 or 3 times. He uses a large cloth pad, not some slick small ICE pad. Here is a video link to see his mouse style. Notice how much he moves the mouse only to get a little movement on the screen. Note: He always 1 v 1. In BF2142 where there are numerous enemies, a little higher mouse sensitivity helps you react better when getting shot in the butt.
http://video.google.com/videoplay? docid=6113986045417125388&q=fatal1ty&hl=en
So the moral of the story is. Check to see if your mouse sensitivity is too high, that may cause you to be missing more than you should.
SCREEN RESOLUTION
Another tactic by better gamers is screen resolution. We all love the fact that our uber system owns at 1024x768 and many players up the resolution even more. While the game looks great, every time you increase your resolution, the size of the enemy players and their heads get smaller. In the end your looking at a flat 2-D monitor. Increase the number of pixels and you've made the object appear smaller to your human eye.
Many expert gamers play at 800x600. This gives them larger targets to hit. The best CS player in my area played CS at 600x480 and owned all the time. So if your screen resoultion is high, try knocking it down a bit to make the targets larger.
You will have to scan more due to reduced Field of View, but when it comes time to shoot, you'll have a larger target. And scanning more is a good habit to pick up, not a bad one.
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