Call of Duty Modern Warfare 2 10th Prestige Account

From the auction:

This auction is for an account on Xbox Live that has reached the 10th prestige in Call of Duty Modern Warfare 2. I guarantee this account will never be reset or your money back. I guarantee this account will never be banned for it’s rank or how it got there. How can I guarantee this? I am employed by Infinite Ward so I have an inside advantage that allows me to guarantee this account won’t be banned, or your money back. The tag is “Nukes Allll Day” But I can change it for you for an additional $10. Please message me your list of top 3 preferred gamertags during checkout. Check my feedback, I do a lot of boosting. If you have any questions then please message me here, not on XBL. Thanks and happy bidding!

Seems likd of sketchy, BUT the seller does have positive feedback for similar auctions.

The oddest thing is this on the questions:

Q: What The K/D on This Account? Will I Be Able To Choice The Gamer tag i Want?
A: This account has no kills or deaths.

Again, seems sketchy.

Similar auctions from this guy have sold for around $300.00 normally, but up to $500.00.

Link