American Express: $10 Statement Credit, $5 Statement Credit w/ $10+ Purchase at AMC Theatres, $25 Statement Credit w/ $50+ Purchase at PacSun (Xbox 360 Console Required)

Got this in my email tonight:

Dear XXXXXX,

Thank you for syncing your American Express® Card with Xbox LIVE and
congratulations to everyone who reached the "Lone Wolf Legend"
achievement playing Halo 4! The competition is now closed and potential
winners will be hearing from us shortly.

Be sure to check out the many other great offers from American Express:
1. Go to the Games section of the Xbox 360 dashboard and click on
the Browse Games tile
2. Click on the American Express digital experience tile
3. Click any of the offer tiles to add offers directly to your
synced Card and to learn more about Halo 4 in-game achievement offers

That was just for the first ten people to beat the game or something and win a trip to e3.

All my accounts got the same email.

I am not much of a gamer, I bought Xbox and rented the Halo4 game at redbox. May I know how long does it take to finish the stages? I started playing and feel it is going to take some days. ... ;-(

Any pointers or help would be greatly appreciated. TIA....

I am not much of a gamer, I bought Xbox and rented the Halo4 game at redbox. May I know how long does it take to finish the stages? I started playing and feel it is going to take some days. ... ;-(

Any pointers or help would be greatly appreciated. TIA....

Thanks for the level skip tip. How many levels are there?

Eight levels.

We have 12 AMEX cards in our household. If I sync/unsync/sync/... all 12 cards, will I get 12x$10 credits?

I am not a gamer, but it is very tempting offer and maybe a good reason to buy, since you can do a lot of different stuff with it (like dancing games, my kid would love it). When buying Xbox 360, should I buy just a console ($199 at amazon) or console+kinect ($249 at amazon)?

Yes it is a great reason to buy, especially if you get the Sparton Ops achivements. Not much time though so hurry. Definitely get the Kinect if you plan on playing Dance Central.

Thanks. So, syncing with Xbox works in the same way as with FB/twitter, where with single account I can sync, load offer, unsync, sync new card, load, .....?