Errrr... I dont want to go into detail because Im not the spolier type of person... but lets just say.... it involves, killing lots of civilians... i guess as part as your mission.
You know how those party poopers such as Nancy Grace and all those other jackasses start talking crap when a violent game comes out.. "Oh this is the game that turns people into killers in real life, yada yada yada, ya know?
(But now that i think about it, the first time you run the game, the games tells you theres scenes where one may be offended, Would you like to skip all these scenes?" So... a person DOES have the right not to play them, so i dont know why all the big fuss.