Microsoft accomplished something special by enabling the Xbox One to run selected Xbox 360 titles. Dubbed Backward Compatibility, the feature debuted with the November 2015 New Xbox One Experience update, and utilizes an entirely software-based virtual Xbox 360 to work its magic.
That's not to say it's a perfect system. Games are notoriously resource-intensive and fidgety, and issues can and do arise. According to users over at Reddit, gaming site Kotaku, Halo: Reach is just one such game, and it's causing some problems for Xbox One users.
One Reddit user, ailinmcc666, reported on December 27:
The framerate is terrible, which makes the game feel jerky, and completely messes with aiming. It's shit; I'd rather they didn't release it at all as a BC title than release it like this. How can they release it in this state? It's unplayable.
Looking at Microsoft's Xbox User Voice section, ailinmcc666 isn't alone. Xbox One user gre3nbl0b wrote on December 28:
THIS GAME NEEDS TO BE FIXED! Splitscreen causes huge audio bugs, and the framerate drops to below 1 at times when generating new terrain. During intense battle scenes it is fine, but while rendering new areas I simply paused the game and watched a 10 minute video on my phone to prevent lag. I waited for 6 months to be able to play this game, and a friend of mine who had sold his original 360 copy purchased a new one for $20 and was completely shocked to find how slow it runs. Microsoft, please fix this game!
Fortunately, Microsoft is aware of the issue and is working on a fix, according to gaming site Kotaku:
“We’re aware some users are experiencing issues playing Halo: Reach via Xbox One Backward Compatibility. The Xbox engineering team is currently looking into the issues and are working to address them.”
So, there you have it. If you're trying to play Halo: Reach on your Xbox One via Backward Compatibility, then you're likely finding it a troubling experience. Hang tight, Microsoft is on the case--and we'll let you know if and when the issues are resolved.