I recall that artificial gravity was used to disable enemies in Andromeda. Once. I never understood why turning it up (or down, or on and off again) was never used to slow movement of invasions. Well, I understand it from the production standpoint, but it’s one of the things that always bugged me.

Another is the life support. There’s no reason whatsoever for the hallways to cool down, nor to lose oxygen. Without life support, oxygen levels should slowly decrease in inhabited rooms, people should slowly start to lose conciousness, with no sharp cutoff point when it becomes lethal. I know it’s more difficult for exciting storytelling, but it’s common knowledge, I would expect. I don’t get why more people aren’t annoyed by it.