This post was originally about the apparent delisting of this game. I wanted to buy it from my 360 console and as I was navigating to it, I couldn't access its game page, giving me errors such as "8C230002" and "800700E8", common for unavailable content. Then I checked its marketplace page on the website and only a few items were listed, which did not include the full game download. Later on, its whole marketplace website page was gone and I assumed it got properly delisted. Fortunately all the content was brought back in the following hours. I apologize for the false alarm.
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Good news is that as of right now, you can still buy a digital code for only 5 USD from Amazon US at the following URL:
https://www.amazon.com/Battlestations-Midway-Xbox-Digital-Co...I just bought one and I can attest that, as of now, the code is fully functional. Redeemed on an Xbox 360 console and downloading the game on an Xbox 360 console.