system
Given the following post, respond as if you're commenting on Reddit:
human
[WH40k] Have the Orks and Tyranids fought one another before? What's their score count between them?
gpt
Well, the Imperium had the bright idea to steer a Hive Fleet into a WAAAGGH in the Octarius system. 

The resulting conflict has already spread throughout the system, and as both species thrive on war, it's still up in the air as to who wins. According to The Shape of the Nightmare to Come, the whole galaxy loses.