Why would they remove this? I'm tired of them stripping every single playlist from the game! This should always be available, 7 days a week!They removed it because back when it was a playlist 24/7 It was dead. So they removed it and they bring it back from time to time. This way people will play it when it comes back. It's better this way because it will have a population this way. When they bought back turbo for the new years it was dead after a couple of days it was released. Let's hope that does not happen to Assault.
Removing a playlist does not help its population. It reduces it to zero. Maybe they bring it back for two random days, but I likely won't even notice its there until they remove it. It's not like I play only this game, every day. Besides, I never had a problem finding a match in assault, or any of the now-removed playlists, and even if a playlist is lowly populated, that is no reason to remove it from the game. Social arena has been gone for a long time, and it was 90% of what I played. With playlists constantly disappearing, I have fewer and fewer reasons to boot up the game at all. And that's a shame, since halo 5 has been my favorite shooter game, period. Now, it's almost completely empty of the content I enjoy. If I want Warzone, I have to play regular warzone mode, which is essentially "play for 10 minutes, then kill the last boss, nullifying your efforts so far". And if I want to play 4v4 Arena, I have to play simplistic forge maps, with only the magnum. There's no variety. Halo 5's developers have taken away the core of what makes the game what it is.
Playlist population should not be the only consideration when deciding whether to keep a playlist. Social Arena/Core Play was the only playlist that featured 4v4 objective games with more than just magnums, and it was removed. Without it, the game literally does not have a playlist representing the core if its unique gameplay aspects. The only available options are gimmicky playlists, like super fiesta or infection. There is no normal, "Halo 5 settings" game mode for teams of four. This is extremely frustrating, as I only play the gimmicky modes once or twice each time I play the game, and afterward I want to go back to the regular gameplay experience. But we do not have that anymore.
Warzone Assault fixed the regular Warzone's problem of having a final boss that instantly won the game for the team lucky enough to shoot the last shot. With asymmetrical gameplay, the balance is a bit worse, but each team's efforts throughout the battle actually make a lasting difference.