These helicopters are seen in the first two Call of Duty: Modern Warfare 2 gameplay teasers. In the teasers, the helicopters carry a couple of men like normal helicopters and head towards "The Gulag". In game, the player rides beside Soap during a raid on "The Gulag" and provide support by taking out enemy soldiers. An AH-6 helps out by attacking AA positions. The player is then dropped onto the ground via the MH-6 to begin the raid. Little Birds are also seen in the campaign being piloted by Shadow Company and Nikolai in "Endgame" and by the SEALs in "The Only Easy Day... Was Yesterday".
In multiplayer mode, the MH-6 Little Bird is available to drop in the Care Package Killstreak. The MH-6 flies very quickly, and slows down only when it is over the red Care Package smoke, making it extremely hard to shoot down. However, if the player does shoot it down, he will not receive any experience points from it. An AH-6 Overwatch Little Bird was supposed to be in the multiplayer mode but got scrapped just before release date.
The Little Bird appears in the following missions as support:
In Survival Mode, the Little Bird is armed with a minigun which can kill in two successful bursts and eliminate entire friendly squads quickly. It can take much more damage compared to Call of Duty: Modern Warfare 2's Little Birds. Sentry guns can engage the helicopters, but the Grenade Sentry is usually ineffective as the helicopter tends to maneuver a lot and grenades usually miss the intended target. The Minigun version of the Sentry Gun is relatively effective, but it is not recommended to use them against the Little Birds. Sentry guns are easily disabled by the little birds so it's best advised to hide the sentries indoors or gun down the helicopters as fast as possible to prevent worry. Each Little Bird destroyed grants the player $600.
It is possible to shoot down the Little Bird with a pistol, but this is highly ineffective, and should only be used as a last ditch effort to destroy it. Little Birds spawn as close to the player as possible, like Juggernauts, and will dramatically burst into flames and spin out when shot down. Interestingly, if the player is facing the area they spawn and sees them appear (easily done near the Air Support Armory on Underground), only one Little Bird will move to the map, and the other one will stay completely still until it takes damage. If shot down before it moves to the map, it will spin out in flames until it comes to the map, then spin around some more before finally exploding. It is not possible to get killed by the debris from a Little Bird. The health of a Little Bird is set at one level, and will only increase by a small margin on succeeding levels. They can usually be destroyed with a little over a full magazine of assault rifle fire. It is possible to destroy Little Birds with air strikes or Predator missiles, but only the missile is effective, as the air strike requires luck rather than skill.
The MH-6 Little Bird returns again in Call of Duty: Black Ops II where it can be seen on map Hijacked, on a helipad where it has a white paintjob. Several Little Birds are also seen in mission Suffer With Me where they are escorting the Navy Seals before they reach the shore at which point they will fly off and can be seen at certain other points flying by in other parts of the mission. Its role is less prominent than it was in Modern Warfare series. It is no longer main transport helicopter; VTOL most likely replaced it. It also appears at the end of the mission Time and Fate.
It is possible to shoot the Little Bird as it drops off a Care Package or Sentry Gun, but it is highly difficult to do so before the crate drops.
A Little Bird with a Care Package has 500 health points and has no damage multipliers, but flies very quickly and awards no experience for destroying it. It will, however, count towards the Cold Blooded Pro challenge.
The Little Bird was intended to be a killstreak at one point of the game's development. Sound files and coding remain in the game prove this. Enough coding is available that in a modded lobby, one can spawn the Little Bird and fly it around the map.
It is possible to be run over by the Little Bird that will extract your team at the end of "Iron Lady".
Oddly, in Survival Mode, once the Little Bird is destroyed, the minigun on the nose disappears instantly. This can be viewed easily on maps that the helicopter flies low enough for the player to use a shotgun to damage it (Dome, Village, Seatown, etc.).
It is possible to knife the Little Bird in Survival Mode on Interchange.
In Call of Duty: Modern Warfare 3, there are two pair of Little Birds in the mission "Down the Rabbit Hole" that both have the callsign Angel One despite that there are two of them and another pair was callsign Viper One that are being chased by Russian Hind. The two miniguns on the wings of the friendly Little Birds have separate A.I.'s that act like separate sentry turrets which can be seen when it's attacking multiple hostiles at once, one can be firing at an enemy while the other is aiming at another target getting ready to fire. The pilot has control of the unguided rockets.
It is possible to destroy an MH-6 Little Bird with an EMP Grenade.
In Multiplayer, the MH-6 has the words "NO FEAR" and the numbers "435" written on the front.
Unlike in Modern Warfare 2, destroying the MH-6 Little Bird that delivers a Care Package will reward the player with 600xp. In Search And Destroy, this is multiplied to 6000xp, making it very worthwhile to try and shoot it down.