Apparently, and unsurprisingly, they got pissed over the now - infamous terrorist airport scene, (seeing that it takes place in Russia, and is perpetrated by Russian terrorists) and called for a full - on national ban.
The infamous airport «terrorist» scene is, indeed, a part of the game — and yes, it's one of the single most disturbing gameplay segments ever created.
One of the scenes shown was from Modern Warfare 2's infamous «No Russian» level, where the player - undercover as a terrorist - is able to gun down an airport full of civilians.