Yes Not.you know that the games title is not Modern Warfare 4 , but it is Call of Duty 4 Modern Warfare. Games that are different do not play each other. Black Ops games must also be the exact same version playing the same map.
Yes My name is MTMM I wanna tell you my computer is Dell, Processor 4.5 Intel core due to, Ram is 3.5, Video card nVidia 1 GB, SO that is why i can play modern warfare with call of duty black ops 4.
System link is when you connect your and somebody else's console and play a match
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.
No there are more people that play Black Ops
You can't play online spiltscreen at all but you can on call of duty black ops.
No
You play it.
Not really. The campaign will still not make sense, even if you played the first Modern Warfare.
Yes, a keyboard is necessary to play Modern Warfare 2 on PC, however you cannot use a keyboard to play Modern Warfare 2 on PlayStation 3 nor Xbox 360.
No. But you can on Black Ops. It's called Combat Training.
NO
What do you mean? Black ops and modern warfare 2 are both xbox 360 games. If your 360 can't play the disk, most likely the disk is scratched. you can try taking to game stop to get it resurfaced, and if that doesnt work, get a new disk.
There are no zombies on Call of Duty Modern Warfare 3. To get the Zombies you need to play the Treyarch developed Call of Duty Game Black Ops and not the Infinity Ward developed MW3