yes you can just go onto multiplayer and make an account and play away!
N
No
yes, you can play fifteen players on it if you want
keep playing the campaign or if you want a rank online then play online
Yes you can but I recommend the xbox360 or ps3 Also now it is on the iPod touch too. It is called "Call of Duty: World at War: Zombies" and it costs $9.99.
yes you can with up to 4 people its awesome
No. Only on XBOX 360, PS3 and PC version of the game support this game mode
Yes, you can play cod5 with 2 players in a campaign.
If you like to roam free and and fool around gta4 is what you need. But if you are a serious gamer who likes to rank up and loves online play get cod5.
Sorry, you need a copy of CoD5 to play it, and first you need to beat the campaign on any difficulty.
NO only the people with online acounts can play unfortunatly its not like halo
No you can not play xbox on line with PC.