473 Big City - Their location?

I continued using the drones at my disposal and I discovered a few things. I used each drone for each area and our guesses for which area was used for a specific purpose were mostly correct.

The frontal area was the soldier's barracks, the main area was the civilian's quarters, and the back area was used for miscellaneous jobs that included preparing food or maintaining equipment.

The frontal area had weapon caches strewn about with their communication equipment and some rooms were marked specifically by their ranks and their designated jobs. The main area made use of each room to give a room for two families to live in but the hospital in the frontal area had rooms reserved for the elderly and those with particular injuries. In the back area, aside from preparing food and such, they seem to be training people to act as soldiers in the future because of a schedule I saw hanging from the gymnasium.

I thought that most of the dead would be located in the main area but I was wrong.