What exactly are you talking about? Do you not know what a level is? It's a particular part of the game and when you beat it you move onto the next one.
Like in Call of Duty Modern Warfare 1 it is called 'End game'.
The fourth level in Call of Duty Modern Warfare is No Russian (which can be skipped.)
well call of duty and modern warfare are the same it is called Call of Duty: Modern warfare and then came call of duty: modern warfare 2
S.s.d.d.
by acheiving a certain level
Call of Duty classic Call of Duty 4 Modern Warfare Call of Duty World at War Call of Duty Modern Warfare 2 call of duty black ops call of duty modern warfare 3
Call of Duty Modern Warfare came before Call of Duty Modern Warfare 2
level 4
Level 22 :)
"Call of Duty 6" "MW2" "Modern Warfare"
"Call of Duty 6" "MW2" "Modern Warfare"
Call of duty modern warfare 3