All In (mission)

 is a campaign level of Call of Duty 4: Modern Warfare. It chronicles a joint operation between the SAS and the U.S. Marine Corps in which they must fight their way to the ICBM silo that Zakhaev launched missiles from.

Plot
The nuclear missiles have just launched and it has been confirmed that they are heading straight for the east side of America, an estimated 40,000,000 deaths if they reach their targets. Back at base, men are working to get the abort codes while both the SAS and U.S.M.C. attempt to get into the launch site where they can enter these abort codes...if they can get them.

The two teams get to where the missiles where launched, but unfortunately there are many guards blocking their path, and three armours. They go through two launch sites where Soap and Griggs take out the armour and the rest of the team take out the men. They finally get to the vents, cut them open and begin to rappel down.

Tips

 * Get good cover, bearing in mind that the enemies will be at the full 180° in front of you.
 * Wipe out the mens with turrets, RPGs or other heavy weaponry first but be careful as other men will take their place.
 * Obviously put up smokescreens to get to the armours but if you don't have any, or it isn't very good cover then run from cover to cover until your reach the armour. Then plant the C4 and leg it, detonating the C4 once you are a good distance away (but keep running to cover)
 * Don't fall down the open missile hatches!
 * At the first stage of the mission, there will be enemies all around you, possibly even some behind you.
 * Feel free to use RPGs, not C4 to destroy the armour.
 * There is also a FGM-148 Javelin on a balcony as an even easier alternative.

Enemy Intelligence

 * Laptop 27 is found just before the gates are blasted open, and just after you destroy the first armour. There is a building with RPG snipers on the right. Check behind the building nearest the silo for the laptop (down a small passageway).
 * Laptop 28 is in the furthest south hanger, near the furthest south missile tank.

Xbox 360 Achievements

 * The Ultimatum is obtained by completing the previous, current and next mission on veteran difficulty.

Trivia

 * After your team has sawed off the top of the vents, you can stay up and look around but if you stay to long two hinds will come into the map and will fire upon you until you are dead.