According to one report, which includes images of a French copy of the shooter, the game box confirms that a 1GB installation is required.
It also appears that a Brazilian store has begun selling the title ahead of its official release date.
@thedreamysoul Where did you get a copy of an XBOX 360 version of Titanfall?— Titanfall (@Titanfallgame) April 4, 2014
@thedreamysoul Well the game does not begin releasing until April 8th. That is the reason you cannot connect.— Titanfall (@Titanfallgame) April 4, 2014
While the outsourced Xbox 360 edition of Titanfall was originally expected to launch alongside the Respawn-developed Xbox One and PC versions on March 11, it was initially delayed by two weeks in early February to allow Bluepoint Games "time to put the finishing touches on the game".
The Xbox 360 Titanfall release date was then delayed for a second time to next Tuesday, April 8 in North America and April 11 in Europe.