On the live stream, the map developer said there were easter eggs on the map. I don’t remember if he said there was more than one though. I went through it and I found one of them.
On blue side by the home base, if you go all the way to the left side of the map you’ll see two big containers with a frozen pipe near the bottom in front of them. In between the containers there is a small little snowman sitting there.
So just a little easter egg so far. That’s all I found, but maybe there is a bigger one like the Rig has so keep a look out.
Edit: No clip yet, but I’ll post one when I get back on later. If not, it’s a pretty easy egg to find so anyone should feel free to post it if you can get a clip of it.