They do use advanced techniques to discover who is playing from the same location, however IP address use isn't the only one that is available and used. They do block multiple account use if you go over a certain number, but 2 or even 3 won't be a problem. The block is likely to initially be for 24h
About Tiberium Alliances Technical Issues
Having problems running the game or a script? Get help with Command and Conquer: Tiberium Alliances with the community!1,375 PostsLatest Activity: 5 hours ago