As you made your way swiftly through the upper levels of the FOA Compound, the chatter of machines around you was able to be heard. The constant whirring of their mechanical parts as they moved about, the sound of them moving along the concrete of pathways, and the sound of heavy gunfire from somewhere far in the distance. Most likely the sounds of the machines engaging against their Soviet counterparts, beating back the intruders upon the territory that humanity once held in its grasp.
As you drew closer to the large bunker door ahead of you, the small camera embedded just above it flickered to life with a red light, which looked down at you and focused in slightly. The intercom device embedded against the wall only a short distance away began to speak, the digitalized voice of someone or something beginning to emit from it.
"Hello."