...That force you to play in a way that goes against the entire nature of the game. I've been playing Halo 3 today to try and finally get the Two for One achievement, (legitimately, not arranging it in the pre-game lobby) and obviously its not been going so well. So, I've decided that I will not play in a way that other people will not play. Time to pre-arrange the achievement then. See, I have no problem with the Triple Kill and Overkill achievements in Halo 3, because they promote playing the game like it was meant to be played. Anyway, finished Diablo shareware version and Diablo II Shareware version today. Really fun, hope to get a job so I can get the Diablo Battle Chest.

Yeah, there are a couple that can be a real pain. I remember when I actually got that achievements... it was pure chance.

A few friends and I did a profile exploit to arrange a game suitable for attainging the achievements. That was the only way. Otherwise I'd still be floating around without something like Two for One or Stepping Razor.

Yeah, Halo 3 has some bitches of MP achievements

Some of those are total chance so I just changed my region and got em all in one or two games with the help of some other people lol.

I was just thinking of arranging stuff in the pre-game lobby.

They aren't really forcing you to go against the nature of the game as much as they are forcing you to get lucky.

Halo 3 achievements are badly implemented though not all games are like that. Battlefield: Bad Company had good MP achievements that did not force you to go against the nature of the game and the way they implemented the online trophies in Killzone 2 was not that bad. 

Multiplayer achievements can blow me, if you think Halo's are bad just try getting some of the GH/RB ones. This disconnect rate is obscene.