I'm going to have to disagree with White writing the Aliens themselves, they are portrayed exactly the same way they always are since Aliens.
I mean, he was whacking them with a powerloader. Which was a cool move by Marcus/Blue, but not so much by the Aliens. It literally means that the Alien has to sit there and be fly swatted by something that slow moving. The queen in Aliens was at least massive and would've had more trouble getting out of the way. The warriors though?
Again, I'm not talking about the world building or the actual story, those are fine, just the Aliens themselves.
White isn't BAD at writing the creatures but it's just the same stuff it always is when they encounter humans. There is no ambiguous gauge of intelligence or anything like that. Just Alien banshee scream, human munchies, much kill.