Bought Far Cry 4 for Xbox but can't play it?
What has happened is quite odd - even if you've paid for the game, it isn't launching for a number of users thanks to the small matter of the game itself not being listed on the Xbox Marketplace. That's right. The same place you bought it from.
If you check the Xbox Marketplace, you'll find the game does show up in the searches, however, it is impossible to get at it.
Microsoft haven't said what's going on, but the developer - Ubisoft - have acknowledged the problem on a message board, saying "we are investigating". Kotaku report that one customer bought the game on the day it came out, unlocked all the achievements, but can't get back into the game thanks to an error message when trying to load it up.
At £49.99, that's an issue not to be sniffed at. The advice here is that, if you're thinking of buying the game, it would be wise to hold-off and let Xbox and Ubisoft sort the issues out. There's no point forking out for a product if you can't use it. If you've already bought it, but can't gain access to the game, hang tight or complain about it all in our comments.