No. It's impossible. You must play against friends.
Yes you can.
No you can only play mw3 on xbox 360 (and pc and ps3 of course) not on xbox.
you absolutly can't
Yeah i think You could play something called "spec ops" its waves that continues from men coming
You cannot play infection on mw3 wii version. But people found it by hacking.
Play more and read the wiki on MW3
No.
To play against bots in Modern Warfare 3, you will need to play offline. This can be done by creating a separate profile for offline use. Bots are not available for online gaming.
You can't play.
Probably not
yes of coarse
mw3 is awesome very awesome for awesome people and this stupid tf2, the gun suck, everything in tf2 is suckish. play mw3, mw3 is the best and tf2 are for noobs and losers