Zakhaev Airport Massacre

Before the Massacre
Vladimir Makarov, Yuri, Alexei Borodin, Viktor, Lev and Kiril arrived at Zakhaev International Airport's underground car parking lot. Makarov found out Yuri betrayed him by alerting the authorities beforehand, and shoots him in the chest with a Desert Eagle and leaves him to bleed out in the parking lot while he and his men enter the elevator to begin the massacre.

The Massacre
Upon entering the terminal, Makarov, Kiril, Viktor, Lev and Allen opened fire on dumbfounded civilians at a security checkpoint, killing all of them as they tried to flee through the crowded choke point of the metal detectors. Makarov and his men then moved methodically throughout the terminal, firing scores of rounds at the fleeing civilians and security guards within it, and coldly executing the injured. After the bloody massacre of civilians and police officers inside the terminal had ended, when they reached the tarmac, the FSB counter-terrorist unit was deployed in order to engage Makarov and his men and stop the massacre. The FSB killed Kiril and Lev in the ensuing shootout, but ultimately failed to stop the terrorist group, leaving only Makarov, Viktor and Allen to escape. They reached their getaway vehicle, an ambulance, in which Anatoly and a driver had been waiting for them. Makarov, already knowing Allen was an undercover CIA agent, then betrayed and executed Allen as he helped him into the ambulance. The ambulance drove away, leaving Allen's corpse to be recovered by the FSB.