WWI needs more to do, things that will have you flying, trying to shoot things down without having to go into that grinder furball in the center.
Be it zeps, barrage balloons, or herding sheep. The mains have many different options, air, tanks, boats, fleets, field capture, strat attacks, bombing, air vs tanks, air vs fleet etc.
WWI has only 1 thing, center dogfight.
And it will remain more or less a ghost town until there is more to do.