Your Best Sniper Kill.

[Megacherv]

Killing Floor, high-level sharpshooter with a crossbow, I practically pick off any of the stronger enemies from a-far. So I have many examples. I can remember hitting a flesh pound but I just missed his head, so he went beserk. He was right up in my face and I managed to take his head off without looking through the sights. Then I went back to yelling at my team for not concentrating on the smaller enemies so I can pick off the Scrakes with ease.

 

[Dfskelleton]

Quake 3.
Some guy did a quadruple backflip from jump pad to jump pad, and just as he was about to grab the best weapon in the game, railgunned and gibbified.

What is the best weapon anyway? Does it aim itself well dispensing milk, cookies, and kittens?

BFG10K is the weapon I was referring to, although the gun you described would be the best gun of all time. EVER.

 

[Dr. Paine]

Alright, when I replay Mass Effect 2 (I generally get better sniper kills there), I'm keeping a log of my awesome kills. I know I've had quite a few, but the only one coming to mind is headshotting a pair of Collectors as their little platform thing came at me.

And there was one instance where the computer AI got a great shot- I was out of clips, something was coming at me, then I see head explosion. Huzzah for computer-controlled characters that do something!

 

[TheTim]

Call of duty 4, hardcore team deathmatch, overgrown:

i took a shot at a guy on the second story in the barn and i guess there were two guys behind him so i got a triple kill with one shot.