Re: Hardest Achievement or Trophy you have ever gone for?
Mile High Club - Call of Duty 4.
I'm sure most people might say this, others may think it's easy, but to me it was a bitch. It's made even worse when I got to the terrorist after a few hours of trying, and I shot the hostage. I gave up after that. Then went back to it a few months later only to finish the level after a few attempts.
Another one is the Seriously 2.0 on Gears 2, not overly difficult or anything, just mind numbingly boring.
Banner & Avy - Abk™