Another obvious key point that nostar missed is sound. Seriously buy yourself a pair of quality headphones(or use the pair from your ipod knockoff) Sound really plays a key role in all aspects of the game but especially on defense. Take map 26 for instance, if you stand near the window closest to the stairs, you can here the opposing team drop down or even hear their spawns in the middle walkway.<br /><br />P.S. I made my bro read your guide Ladna, he said he found it somewhat useful.