What is this Lv5 combat site? I did not find any information about it online

I just scan down this strange site called Guristas Reptile Pit Shipyard, I thought it is a suporior Sleeper Cache at first lol, but it turn out to be a really strange combat site with no warp-in spawn and a bunch of structures like this:

That’s the Reptile Pit - a Gurista landmark site put in during the start of the Hunt event this year. It’s a combat site that needs to be scanned down. As you said, there aren’t any hostiles, it’s just to look at.