Well I look forward to a rework, if there will be any. It's a shame that there is a huge wikipedia page dedicated to something that doesn't even exist in game.
https://www.paradisestation.org/wiki/index.php/Xenomorph
I'm new to ss13 and have sunk about 100 hours on paradise station in the last couple of weeks. However, I have yet to see an official Xenomorph round.
My suggestion is that we have more of these rounds because I think they're pretty cool :)
P.S. Are these rounds even in the game???