Instructions
Reach seven kills in a row without dying during an online multiplayer match. Find an easy to guard position that gives you a clear view of the battlefield to increase your chances of reaching a seven killstreak. Dying before you reach a streak of seven will require you to restart the streak.
Kill yourself as soon as you are rewarded with the "Attack Chopper" killstreak perk by dropping a grenade at your feet or finding an opponent to kill you. Killstreaks carry over after you have respawned, so dying will not cause you to lose your killstreak perk.
Find a place to hide after respawning, and activate the helicopter perk by pressing down on the D-pad. Stay hidden as your helicopter circles the battlefield gunning down the opposing team. Each kill the helicopter records will count toward a new killstreak that can be used to call another helicopter to the battlefield.
Repeat the process of killing yourself, hiding and calling in the helicopter, and you can continue to receive unlimited helicopter support without firing another shot for the rest of the game.