Some Syndicate players on the Xbox 360 they encountered several freezes during game play co-op, and now EA has offered a temporary solution to the problem. The console is blocked due to a conflict between the Party chat of Xbox Live and chat in-game play, so to avoid the freeze should quit the Party and try to use only the game chat, however it is not assured that the problem will be resolved. Developers are already working on a corrective patch that will be released in the coming days, in the meantime you can report any problems or bugs in the official forum at this address.