How much do you know about COD: Modern Warfare?

Do you know why sheperd killed Roach...?

1 Why do you attack the Cargo ship in 'wetwork'?
2 Who is the Civil war between in COD 4?
3 Who sends the Nuclear Missile to the middle east?
4 Why do you end up dying on a bridge at the end of COD 4?
5 Who are held prisoners in the Gulag?
6 Who won the 'Last War'?
7 Why did Sheperd turn on you?