nebulous

Fuck you Chicken you know I like them

Liking them is one thing, including them is a different thing

Whole reason I refused to include them back then is because they were made by a third-party design team (which is very noticable), and with the primary factor of gameplay mechanics in mind, rather than theme and lore. The expansion didn't feature Xen creatures simply because the studio was like "no we dont like their attacks" and created Race X to be used as their own obstacles.