One of the first conflicts with names that we have encountered outside of the base game! Yeah, Netherworld is also the name of the third episode (well, normally it is The Netherworld, but it is shortened in the Multiplayer menu).
Also, this is just a redux of Cadence with all of the weapons thrown into the central area and a powerup existing on either side. As all of the ammo is on the Quad Damage side, I don't really see how this level is balanced in the slightest.