you rank up by getting xp which can be done by killing people and completing challenges
There are a total of 70 levels (ranks) in Modern Warfare 2 Multiplayer.
online you go up ranks and then you get guns
Not in Private matches, but you can in normal, online matches
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
Both the Nintendo DS Call of Duty 4 Modern Warfare and Call of Duty Modern Warfare Mobilized were designed for the Portable Nintendo DS and do not have the capabilities of the Xbox 360 and PS3 versions. The user rating at Gamespot are higher for the newer game (Mobilized)that was released when Call of Duty Modern Warfare 2 and the Nintendo Wii Call of Duty Modern Warfare Reflex Edition were.
Call of Duty 4: Modern Warfare came out first. This is the first game in the Modern Warfare series, and Modern Warfare 3 is the third game in the Modern Warfare series.
Modern Warfare is rated a little higher than World at War see related links for both games
Call of Duty Modern Warfare came before Call of Duty Modern Warfare 2
no theres a call of duty modern of warefare 2
"Call of Duty 6" "MW2" "Modern Warfare"
"Call of Duty 6" "MW2" "Modern Warfare"
Call of Duty 4: Modern Warfare was just before Call of Duty: World At War, and Modern Warfare 2 came just after it. Unless its on the Wii, on the Wii its WaW the Modern Warfare but its called Modern Warfare Reflex