there was indeed an event card played on the Agrapinaa system, just look at the HQ transmissions in the warroom
This has been a post by: Brother Librarian Axel "Guns" Enrozes

"Welcome to the jungle... it gets worse here everyday. You learn to live like an animal in the jungle where we play and if you’ve got a hunger for what you see, you'll take it -- eventually. You can have anything you want, but you better not take it from me...Hey, look, a Tyranid"-BOOM