Just finished Wolfenstein: The Old Blood (PC of Course, because no 360 Version available)
I completed it in 50 Hours, started directly on Über and got all Collectibles i one go and also collected all the Old Silver Stuff in the Nightmare Levels to unlock all Characters. Also in those 50 Hours is the Time to do the only other Choice available in the Game and to finish and get Gold on all 10 available Challenges.
Beating the last Boss on Über was not so hard but i needed about 8-10 restarts/deaths. The Challenges are way more tedious, on some it's very hard to get the needed Scores, because Head shooting everything isn't enough, you need Headshot-Combos and also on some you need a good Strategy else no way. I'm now on the 1th Place in Worldrank on some, but surely some will beat it, i don't care so much.
Well, for the Game itself, it's ok, but only ok, also there is no Reason why there was no Xbox 360 version, i mean i buyed Wolfenstein: The New Order for the Xbox 360 so why Wolfenstein: The Old Blood is only for Xbone/PS4/PC?
As long there is no enhanced slim Version of the Xbone, that's anyway no Option for me, so if they simply bring Games only for Xbone that could also be released for 360 in hope People will then get an Xbone, then i say no and buy it for PC instead, simple as that.
I played the Game on a Notebook attached to TV and it run smoothly at 1080p60hz with High-Ultra Settings even with only one GPU (Game Engine does not support SLI), so as long there is no enhanced slim Xbone that can do the same, no need to get one.