You can't play online spiltscreen at all but you can on call of duty black ops.
No
$5 a day
No, it is free to play online.
of course.
No
Play online
No.
No. There is no co-op campaign in Modern Warfare, local or online.
You could search online for CoD Modern Warfare 2 for PC Otherwise Play or Game should have it
Yes, unlike xbox.
get xbox live and and click find match
Yes