What game has the hardest achievements/trophies?

[MontanaHatchet]

chapset said:

warhawk
getting all the medals in game is impossible and there's a trophie related to that, I mean theres a medal wheree you need 10000kills with your pistol, I have 300 hours of playtime in warhawk and maybe 15 kills with my pistol

Edit: also this thread was already done before

Well I'm sure it was done before, but we're doing it again. 'Cuz that's how Vgchartz rolls.

And man, I thought Gears 2 was hard...