On a killcam (in-game mode), press start to access the menu. Look at the map, it should show the enemy's position where they are in the game. This is known as 'The Art of the Killcam'.
Yes, there is online multiplayer on Call of Duty 4: Modern Warfare.
U go to multiplayer if no multiplayer u beat
Call of Duty World at War, Modern Warfare, Modern Warfare 2, Black Ops, and Modern Warfare 3 all have online multiplayer.
Yes You Can
Unfortunately no, you can't play multiplayer on Call of Duty Modern Warfare 1 or on Call of Duty Modern Warfare 2 on the same screen. But on Call of Duty Modern Warfare 3 and Call of Duty Modern Warfare Black Ops you can play multiplayer on the same screen. There is an new Call of Duty Black Ops 2 coming out soon though, so I expect that to also have that feature, since its newer.
There are a total of 70 levels (ranks) in Modern Warfare 2 Multiplayer.
No you can't.
Sadly no.
no, but there is call of duty reflex, a remake of CoD4 with multiplayer.
There are multiple enemies in Modern Warfare 3. They are Makarov, Volk, and Warrabe
Multiplayer is free.
No. There is only Nintendo WFC.