the name of the mission i think you are talking about is 'the only easy day was yesterday' which is the 9th level of the campaign
The fourth level in Call of Duty Modern Warfare is No Russian (which can be skipped.)
Level 42
nothing
Although there is some contoversy over the first level of the game, Modern Warfare 2 is about as illegal as drinking water in public(no it is not illegal to buy at this time)Hoorah!
The Lieutenant Rank is at Level 34
Level 38
You need to level and complete challenges
You unlock it at level 36.
you have to be level 29
The TMP is unlocked on level 58.
level 4
level 67