EDIT: Turns out it was the Specialization Code 
IF THERES A MOD ONLINE CAN YOU DELETE THIS THREAD 
> I just received an email from xbox live? gift? with halo head
>
> Hereās your free gift
> from Xbox LIVE
> Thanks for being an Xbox LIVE member. Youāve earned a free gift. Just follow the instructions below, and you can download it immediately.*
>
>
> Hereās how to redeem:
> ā¢ Click here or on the āGet your free giftā link below.
> ā¢ Sign in to your Xbox LIVE account using the email address you received this message at (if you are not already signed in).
> ā¢ Your code is automatically entered on the page so simply click Redeem Code.
>
> *Offer good only for named recipient of this e-mail with Xbox LIVE Marketplace offer from Microsoft. Limit: one (1) gift per account. This offer is non-transferable and not redeemable for cash. Taxes, if any, are the sole responsibility of the recipient.
>
> As part of the Xbox LIVE service, we will be sending communications to you via email periodically. You are receiving this member service update as part of your Xbox LIVE membership. This email is provided for informational purposes only. Microsoft makes no warranties, express or implied, in this email.
>
>
> Privacy Statement | Terms of Use
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> Ā© 2012 Microsoft Corporation. All Rights Reserved. All trademarks are property of their respective owners.
Specialization Priority Alpha GOT MY CODe
I got this once. It was a Banshee avatar prop.
EDIT: Oh, so this is something different, then. Still, got a Banshee once.
I just redeemed it and it went to Xbox.com with a code pre-filled in the box.
It was called āSpecialization Priority Alphaā after redeemingā¦ so yeah, the specializations. Too bad I already had themā¦ youād think they would have known the folks who already downloaded the LE stuff.
Anyway, there you have it. The emails are going out now.
> I just redeemed it and it went to Xbox.com with a code pre-filled in the box.
>
> It was called āSpecialization Priority Alphaā after redeemingā¦ so yeah, the specializations. Too bad I already had themā¦ youād think they would have known the folks who already downloaded the LE stuff.
>
> Anyway, there you have it. The emails are going out now.
Do you think im the first in this forum? 
haahahaha
I got mine a while ago so youāre not the first.
Wooooo! got it too. Redeemed the code online, turned on my xbox, it automatically downloaded, and i just went in game. I can confirm I can now access the other 6 specializations
Finally. Success lol.
> > I just redeemed it and it went to Xbox.com with a code pre-filled in the box.
> >
> > It was called āSpecialization Priority Alphaā after redeemingā¦ so yeah, the specializations. Too bad I already had themā¦ youād think they would have known the folks who already downloaded the LE stuff.
> >
> > Anyway, there you have it. The emails are going out now.
>
> Do you think im the first in this forum? haahahaha
Nope. People have been posting similar threads pretty much the whole day.
> > > I just redeemed it and it went to Xbox.com with a code pre-filled in the box.
> > >
> > > It was called āSpecialization Priority Alphaā after redeemingā¦ so yeah, the specializations. Too bad I already had themā¦ youād think they would have known the folks who already downloaded the LE stuff.
> > >
> > > Anyway, there you have it. The emails are going out now.
> >
> > Do you think im the first in this forum? haahahaha
>
> Nope. People have been posting similar threads pretty much the whole day.
Alright then
Nice, just redeemed mine as well !
Just got mine and the 6 other specializations unlocked. Still need to see how bad the lagging is and decide if I want to play Halo or Gears of War 3.
im still refreshing but no dice yet 
Where do you live??? east coast or west?
Iām on the east coast. When can I expect mine to come in?
Glad theyāre being sent , can i get a confirmation that its a slow process and not everyone has gotten it yet? Still waiting ^^
Pfft, what the -Yoink- do you mean gift?
We should have had this -Yoink- from the start!
Iām west coast and I havenāt recieved mine either, still waiting.
Be prepared for a LOT of European hatersā¦