Both Alienslof and Killa Dutch have chimed in with some AvP2 essays...
Don’t get me wrong though: although it is a one hit kill weapon (usually), if put in the hands of a novice, it can be an easy kill for an opposing player.
Check out the full story in The Art of Sniping.
However if the Alien is more your bag, baby...
I can't stress this enough - USE THE WALLWALKING! Spend a lot of time on the ceilings in dark corners and ambush - many people I've played against are used to games where you don't need to look up
Have a read about Alien survival here.
Then hit the forums.
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