Resident Evil 6's Siege mode will be available "at a later date," Capcom has confirmed with GameSpot. Further details on the content's price and availability will be shared in the future.
The Siege mode for Resident Evil 6 was announced in September as being part of the first downloadable content for the game. However, Capcom made no mention of it yesterday when revealing that this expansion would arrive December 18 for the Xbox 360.
Instead, Siege was replaced by a previously unannounced Onslaught mode. If Siege mode remains in its original form, it will have one side protecting a single non-playable character pitted against enemies attempting to kill that NPC.
For more on Resident Evil 6, check out GameSpot's review.