If you are planning to pre-order the new Doom you may be happy to hear that you'll be receiving some additional benefits for doing so. Previously there has been no news about pre-orders for Doom and pre-ordering the game via the Xbox Game Store has not been possible so far. However, the Xbox Games Store in Australia had a little slip up and showcased the pre-order page for Doom shortly before being taken down again.
According to the Australian pre-order page for the new Doom, players will be able to receive versions of Doom 1 and Doom 2 for pre-ordering the upcoming title. It's likely that the Doom 1 and Doom 2 games that will be packed in as part of a pre-order bonus will be the same XBLA versions that are already available on the Xbox 360. Both versions are currently on sale for $5 each and backwards compatibility is already supported for both Doom 1 and Doom 2.
Giving away both arcade versions of Doom 1 and Doom 2 is a generous move by Bethesda and it's very simple for them to do. In fact, this is not the first time Bethesda has offered such a deal for pre-ordering a title. Players were previously rewarded a free digital copy of Fallout 3 for pre-ordering Fallout 4.
Other publishers have offered similar deals before as well - For example, Square Enix recently gave out free copies of Just Cause 2 to all players that pre-ordered Just Cause 3.