i think its not limited so you can get as much as possible my score is 20115 and my gamertag is:mr dima 1999
No, and if it was possible what would be the point of buying and Xbox 360 anyways, besides the point of live? You can play a lot of regular Xbox games on the Xbox 360.
no
no you don't you can get the achievement on campaign
no
I've completed the game in Agent mode....no achievement points for it!
Every achievement has a different requirement you haven to meet. Some you just have to complete a mission or some you have to complete in a allotted amount of time. You can check what you have to do for most achievements when you view the achievement list from the Xbox Dashboard or the achievement will be called "Secret Achievement" and you won't be able to view it's description.
The year was: 2005
Only Reset to 0G
Try resetting your Xbox's cache Settings > System > and restart your Xbox and it should work.
Just check what the achievement do in the crack down menu when you start your xbox go to my games library then crackdown then achievements....
yeah.........................................im pretty sure
If you mean a Xbox Live Gold Trial then yes. You can have as many people on it with trials. But you have to create a new player