The aliens were big.

/The ships are heavily armed with everything from rockets to plasma cannons, to improvised railguns that can launch scrap./

A lot of those things are the handheld guns. Their makers had big hands. The aliens who built all these things were at least 10 meters tall and some apparently a lot bigger than that. Found clothing, armor and other personal gear suggest they were different in other ways as well. Some of the items are completely enigmatic - talismans? Personal hygiene objects? Chew toys?

There is nothing scaled for humans on this world. It is Honey I Shrunk The Kids, but with shrapnel shooting railguns.

The aliens were big.

https://www.youtube.com/watch?v=kOUW1G-AE0A

/The ships are heavily armed with everything from rockets to plasma cannons, to improvised railguns that can launch scrap./

A lot of those things are the handheld guns. Their makers had big hands. The aliens who built all these things were at least 10 meters tall and some apparently a lot bigger than that. Found clothing, armor and other personal gear suggest they were different in other ways as well. Some of the items are completely enigmatic - talismans? Personal hygiene objects? Chew toys?

There is nothing scaled for humans on this world. It is Honey I Shrunk The Kids, but with shrapnel shooting railguns.