Emergency Airdrop

Emergency Airdrop is a killstreak reward in Call of Duty: Modern Warfare 2. Requiring a killstreak of 8 (7 if Hardline is used), Emergency Airdrop is similar to Care Package, with the key difference being that Emergency Airdrop drops four crates instead of just one. It also has a greater chance of dropping rewards with higher kill requirements, and it takes considerably longer to reach the smoke grenade and drop its crates. The aircraft that drops the crates is a plane, specifically an AC-130, and not a helicopter, so it does not stop when it drops the player's crates. Because of this, crates can be spaced very far apart. Many players find themselves with some, or even all of their rewards in unreachable areas if they are not careful.

Content Probabilities
The probability of getting at least one of any item is as follows:

Ammo: 40.0% UAV: 40.0% Counter-UAV: 50.2% Sentry Gun: 50.2% Predator Missile: 45.3% Precision Airstrike: 34.4% Harrier: 18.5% Attack Helicopter: 18.5% Pave Low: 11.5% Stealth Bomber: 11.5% Chopper Gunner: 7.8% AC-130: 7.8%

Players cannot receive Tactical Nukes, EMPs ,Care Packages or Emergency Airdrops from Emergency Airdrops.

Tips

 * It is advised that players pick up the crates with the most desirable killstreak inside first, to minimize the risk of enemies or teammates taking them.
 * The crates need considerable space for all of them to actually land on the ground. Also, make sure there are no enemies nearby, as when the Emergency Airdrop is announced enemy players will be looking for the red smoke, and will watch the plane to find out where it drops the crates.
 * The AC-130 will fly in the direction that the player was facing when they threw the smoke grenade, and the first crate will land where the smoke grenade was thrown.
 * Putting a Tactical Insertion near the crates can be a good insurance policy in case the player is killed. This is especially useful on smaller maps, where the enemy is much more likely to come across the crates.
 * Be aware of your surroundings before popping the grenade some or all the crates may be out of your reach.
 * In Hardcore games, teammates sometimes Team Kill to pick up killstreak rewards.
 * Using smoke to conceal the care package drop can be very beneficial, as the player and teammates will still be able to find the care packages because of the HUD markers, while the enemy will have difficulty finding them.
 * If a Counter-UAV is one of the crates, it is advised to take it first, then activate it so that the enemy cannot find the other crates. This strategy also applies to Sentry Guns. If one is in a crate, pick it up and place it near the crates in order to protect the crates from enemies.
 * Consider leaving unwanted crates, as enemies cannot tell what is inside a crate until they get very close, allowing the player or teammates to pick them off as they try to get the rewards.
 * If a teammate takes a crate, the player who called in the Emergency Airdrop receives 50 XP times the number of kills it would normally take to get the Killstreak Reward in the crate. Because UAVs and Counter-UAVs benefit the entire team regardless of who calls them in, it is advisable to let teammates take them for the extra 150 or 200 XP, respectively. It's also a good idea to intentionally give away all of your Emergency Airdrop crates to friendly players except for Chopper Gunners and AC-130s, if you care more about leveling up quickly than getting the most kills.
 * Always have a scan around for enemies, even before placing a Tactical Insertion, as enemies are likely to watch players place a TI, then kill them, then kill again as players respawn. If, on a large map, like Wasteland, it can be very difficult to reach the crates before the enemy takes them all.
 * Smaller maps like Rust, it is inadvisable to call in an airdrop because of the small size and enemies will assault you in a matter of seconds.
 * It is best to use the drop on two round games like demolition so when the teams are gearing up, you can call it in to support teammates.
 * A good way to get the "Grim Reaper" title is to use an Emergency Airdrop as bait and call in a Predator Missile while enemies are trying to take crates.
 * A funny tactic to fool opponents is to leave one crate, the least valuable one and have claymores planted around it.

Trivia

 * Like the Care Package, any kills made by killstreak rewards obtained through a crate will not count towards the user's killstreak. However, if a crate falls on an enemy, the user's killstreak will increase.
 * The C-130 that drops the packages will always enter the map in the general direction that the player was facing when they called in the Emergency Airdrop.
 * It is possible for the player to get two of the same killstreak reward from one Emergency Airdrop. All four crates may be one specific killstreak, although this is very unlikely.
 * The only 4 killstreaks impossible to get from a drop are Care Package, another Emergency Airdrop, an EMP, and a Tactical Nuke.
 * Players can not shoot down the C-130 that drops the packages. Additionally, even if an EMP is used while the plane is flying towards you, it will be completely unaffected and will drop the care packages as normal.
 * Originally, the time taken for the crates to be collected was the same for everyone, including the player who called in the packages. After complaints to Infinity Ward about team-mates and enemies stealing crates, the player who called in the air-drop gained priority over the packages as their time taken for the rate to be collected was drastically reduced but kept the same for everyone else.
 * The AC-130, which drops the care packages, is not a solid object; for example a predator missile will fly straight through it.
 * If a player looks at the aircraft as it drops the care packages, it can be seen it has guns on the side, which shows that it is in fact an AC-130 and not a C-130 Hercules, as previously thought.
 * It is advisable to stay clear of the drop zone, to avoid being killed by the crates. However, there is a title which is unlocked by getting killed by a crate.