Anyone else ever notice there appears to be assets (campaign map previews + audio summary) for a mission called 'Atlantis'?

Can't find a single shred of info on it out there. I don't think any assets for the in-game mission itself are around, but the presence of the other assets seem to indicate *something* was planned here.

Sadly, the devs' forums seem to be long-gone now, so I don't know if anything might've been posted about it there.

Will do. What exactly is the best way to go about that in a proper fashion? Don't wanna just barge in blindly and be a nuisance lol.

Worth noting that since I did more digging, images in the in-game tutorial do in fact show an 'Atlantis' mission in a picture of the select screen menu. Definitely something up with this.

I'd suggest starting a discussion or going to one of the socials (such as Discord) to mention it and start documenting it.