- "Redeploying with an arsenal of content unlike any in franchise history, Call of Duty©: Modern Warfare© 3's first downloadable "Collection" arrives stockpiled with not only four Multiplayer/Survival Mode Maps, but two Special Ops Missions-the first time Call of Duty© has ever made Special Ops downloadable online. Armed with just this one content pack, players can choose between heading to a militarized Central Park in "Liberation," destroying scenic vistas in a seaside Italian getaway in "Piazza," raining glass on New York passersby from 70-stories-up in "Overwatch," and battling beside a downed Air Force One in "Black Box." As if that breadth of multiplayer variety wasn't enough, fans of Special Ops can hop aboard snowmobiles to infiltrate a diamond mine in "Black Ice" or head to India, where "Negotiator" will leave the fate of hostages in their hands. In a class of its own with half-a-dozen forms of content, Modern Warfare© 3's first downloadable "Collection" offers a range of combat and co-op the likes of which has never been seen before."
- — Official synopsis from Best Buy
Content Collection 1 is the first content collection for Call of Duty: Modern Warfare 3 and includes the contents of Content Pack 1, Content Pack 2 and Content Pack 3. It was released on March 20, 2012  for Xbox 360 players, on April 19, 2012 for PlayStation 3 players and on May 8, 2012 for PC players. It includes the multiplayer maps Liberation, Piazza, Overwatch, Black Box, and the Special Ops missions Black Ice, and Negotiator.
Special Ops missions
|Slippery Slope||Complete the Special Ops mission "Black Ice" on any difficulty.||15||Bronze|
|A Baker's Dozen||Run over and kill 13 enemies with the snowmobile in the "Black Ice" Special Ops mission.||35||Silver|
|Ice in Your Veins||Complete the Special Ops mission "Black Ice" on Veteran difficulty.||35||Silver|
|Shotgun Diplomacy||Complete the Special Ops mission "Negotiator" on any difficulty.||15||Bronze|
|Skilled Negotiator||Complete the Special Ops mission "Negotiator" on Veteran difficulty.||25||Silver|
|Not on My Watch||Rescue all the hostages in the Special Ops mission "Negotiator".||35||Silver|
Infinity Ward, Sledgehammer Games, and Raven Software discuss the upcoming Collection 1 in this behind-the-scenes multiplayer video for Call of Duty: Modern Warfare 3. Their biggest content pack in franchise history arrives with four Multiplayer/Survival Mode Maps and two Special Ops Missions. Collection 1 is available for purchase on Xbox LIVE.