The Apache is the main ground support helicopter for United States ground combat forces fighting in Europe. It can be notably seen in "Goalpost". It also provides support in "Iron Lady" and "Scorched Earth". In Multiplayer, the Apaches are the helicopters in the Strafe Run killstreak of every faction, even if the "enemy" factions should be using Mi-28s.
An AH-64 Apache is controllable in the mission "Birds of Prey". The player takes the role of Pirate Five-Zero, and must provide support for the Ghosts. After assuming the role of Logan, Pirate Five-Zero will provide support for the player.
The Apache's nose has a shark-mouth decal painted on it.
The AH-64's 30mm chaingun revolves like a minigun. This is likely because the chaingun uses the same animation as the guns on the Harrier, Pave Low, and other gunships in the game.
All announcers have voice-acted lines announcing to the player an Apache is waiting for deployment, even the OpFor, Militia, and Spetsnaz.
In the mission Goalpost if the player doesn't destroy the two Havocs while on the gunner on the M1 Abrams, two Apaches come along and destroy them using their rockets. Other Apaches are seen shooting down several Russian helicopters throughout the mission.
Apaches are piloted by two copies of Pelayo's model from Call of Duty 4, same goes for the Havoc.
The Apaches used in the Strafe Run killstreak are missing their landing gear, as do the ones in the icon.
In Modern Warfare 3, two variants of the Apache exist: The Modern Warfare 2 variant is used in campaign, while the cut Call of Duty 4 variant (evident by its lack of shark teeth, lower quality textured model and a FCR dome over the main rotor) is used as the Strafe Run killstreak.
The Rocket Pods on the Modern Warfare 2 and Modern Warfare 3 variants (no radar dome/shark teeth) are grossly oversized in comparison to the Call of Duty 4 cut model and actual pictures.
The Apache's cannon has gone through several changes in how it fires. In Modern Warfare 2, the cannon fires repetitively at a constant rate, but not as fast as a minigun or the Pave Low or the Attack Helicopter. It also fires grenade rounds. In the Strafe Run killstreak in Modern Warfare 3, the cannon fires exactly like a minigun. In Ghosts, the cannon fires a unique type of direct, grenade-like round with a high rate of fire and orange tracers.