I actually like it how they did it in Witcher 2, where you'd get extra specials if you selected the hardest mode.
that i would hate A LOT! i like relaxed gaming, i am not at all into this hardcore die-hard playstyle, nonetheless i want to be able to see all the content as well (that is: on easy).
i am ok with special achievements, but all content to all players regardless of difficulty or any other gamestyle defining settings
