(Sorry, I'm on my phone and Google Images and the Bleach Wiki have always been obnoxiously awkward on this thing. I'll get a better picture tomorrow.)

Assembly Hall

Assembly Hall
The Assembly Hall is nestled in the barracks of the Ichibantai and is a spacious room, following the design of the entire squad. It has been traditionally used as a council room in times of war, and is still considered a "high-security" room. As such, only Captains, Lieutenants, and those ordered to attend may partake in the discussions at hand. All others are ordered to stay outside.
