It depends where you pre-order it. If you pre-order form amazon you $20 to spend on a game related item. If you pre-order from GameStop i think you get special armor. You'll just have to look at the website where you are planning to get the game or go to the store and ask.
Halo reach gets put in your hand....
Any preorder of Halo: Reach will get you the Recon Helmet for free use in Halo: Reach ONLY. If you preorder the Legendary Edition you will receive the Bungie flaming helmet.
if you preorder reach, you gets lotsa goodies like extra armor and statues, and a kitten is saved if you preorder
Preorder it or buy it on launch day.
27mil
If you preorder with Gamestop you get a set of armor exclusive with preordering.
You can get reach on it's release date at midnight either at gamestop or you will receive it the same day if you got it from amazon
you have to get xbox live,(you need to preorder halo reach!)first, go to the halo reach menu ,then press the middle of the controller ,then go to redeem code ,type in the code,when you are done go customize your person and enjoy!
You have to have Halo 3 ODST and where it said extras it should now say "play beta."
that is really challenging must be a member in bungie or get all 7 vidmasters in halo 3 ODST that is halo 3 for halo reach you must preorder halo reach or buy the code at walmart or target or any kind of those stores
I expect Bungie to keep the extras from halo 3 and move them to reach. So, to answer your question yes I think they will have double exp. weekend in reach.
Its not the recon that you would get in normal halo 3, it's different, its more like mark VI than recon in halo 3.