Open network tests are always a good idea, as they allow developers to debug a game at scale. Not only in terms of the game itself, but also from a stress testing standpoint for the networking.
You can also get very helpful player telemetry from these open network tests and that can help with balancing a game before release, although it’s probably a bit too late for that in this case.The open network test will have multiplayer battles with 3-player co-op against waves of enemies, including giant boss mecha .In a series first, you will also be able to use your creations as their avatar in the multiplayer lobby, which is a nice touch.