Kicking things off for Premium members on March 13th, Call of Duty® ELITE Drop 4 brings the heat with the multiplayer map “Black Box,” the map takes place around a downed Air Force One, that crashed between some mansions. There are also two different Spec Ops missions, detailed by the devs “In ELITE Drop 5, “Black Ice,” you’ll enjoy all that Russia has to offer: diamond mines, snowmobiles, and frosty explosions. Warm back up with ELITE Drop 6, “Negotiator,” where you’ll comb India’s city streets for hostages.”
It seems different parts of the content drops will be bundled up for non elite members as well.
“Non-premium Call of Duty ELITE members can still look forward to new content with Modern Warfare® 3 Content Collections, including maps, modes and other features previously released through content drops. The first Call of Duty®: MW3 Content Collection 1 will be available for purchase on March 20th for Xbox Live users.”