User blog comment:Argorrath/Activision confirms next Call of Duty for this year/@comment-3111946-20130210142435/@comment-1187559-20130210160758


 * Pick-10 system.
 * 2 attachments without a perk.
 * Ability to remove guns from CaC.
 * Scorestreaks are earned via points instead of single actions.
 * Choices in campaign.
 * CaC in campaign.
 * New zombie characters
 * New zombies.
 * Maps made for survival mode.
 * Ability to play as a zombie.

Just to name off a few.