The mp5k submachinegun is available at level 1, but since you can only create a class at level 5, you'll have to use presets before using it.
40
yes modern warfare 2 will still have the m16 but instead of the usual 3 shot burst it will be updated to a automatic like the m4 carbine but with more power
The fourth level in Call of Duty Modern Warfare is No Russian (which can be skipped.)
Level 42
nothing
The Lieutenant Rank is at Level 34
You unlock it at level 36.
Level 38
You need to level and complete challenges
you have to be level 29
The TMP is unlocked on level 58.
level 4
level 67