I do not think I ever beat that one mission on hard.Right now I play on a lower difficulty level just to get used to the games dynamics again.
Thief 4 is supposed to come out some time in 2014 but it just does not look very good to me and the devs have already said that there will be no jumping.

Which is an odd game play choice which makes it sound to me like the game is going to be a "press button here and press to do this action for a few minutes between cuts scenes" type of game which is just not my bag at all.With Thief epically which has always been a go your own way type game.
http://www.pcgamer.com/previews/255-...me-of-passion/
Anyway I would not hold your breath hoping for a good game lest a
Colonial Marines baby Alien of disappointment burst from your chest.
I would wait until it gets released and see what is what.The other thing that kind off bugs me is that they are already taking pre-orders which screams over hype to me.
Take a look at the Steam page honestly some of the video clips to me i really do not like the look of the game.The second one a modernish looking bank with cameras? Yukkie. Kinda looks to me like they are making a Assassins Creed/Dishonored clone when they should be making a Thief title that stands on it own.
I know that a game series should advance that is not the problem what I am not liking is this new Thief looks unlike Thief and too much a like an intimation of more recent games set in a steampunk universe but not the universe of Thief.
I think they are hoping that legacy Thief fans will get hyped and buy preorder.Not gonna happen with me i will wait until this is released and has had some honest reviews.
http://store.steampowered.com/app/23...snr=1_7_15__13