From what I can gather from everyone I ask about the issue online, Oceanic players are almost CONSTANTLY shoved into US West games - even though the Oceanic population is plenty large enough for the matchmaking system to pull from.
Why is this? Why doesn’t the matchmaking system let Oceanic players stay in our region? This issue has posts stemming all the way back to launch, and 343i have acknowledged the issue - just apparently never addressed it.