Encountering 4-6 Entities within two rooms (Interminable Rooms)

Insane Screen Shaking from 0:50 onwards. Viewer Discretion is advised!!
Technically it is six entities, as listed below in order:
A-150 (In room A-276)
A-278 (with ULB-278 and TLAB-278)
A-183
A-100
The volume throughout the video seems to be having its ups and downs. The consistency of the audio messed up during editing on iMovie, probably better than the unedited version. The original audio had its volume close to max, especially during A-278's attack.

[@WilfredTheDabGreg]

Have for you seen A-404?