More than likely they were trying to fuse their alien and our human DNA ... trying to make some
kind of mutation ... you know, their brains and our ability to live on the Earth as they were at a
As weird as that sounds, that's what I got out of it. The recordings had people screaming, pleading, etc. and then roaring as they were injected with... something... and the same roar came from the "Abominations" that walked around clearly looking alien and they seem to spend just as much time attacking aliens as they did me. Whether or not that was their primary purpose, I doubt it. I think they looked at us as zoo animals to be studied.