While we already knew PlayerUnknown's Battlegrounds was coming to Chinese mobile devices, it is kind of surprising to learn that there are two variations of the game. While they both bare resemblance to the official PC version, each game seems to focus on a different aspect of the experience.
Army Attack strips back the more tactical elements of the main game and gets players into the action a lot quicker. You'll also see a greater focus on air combat, something that the main game doesn't even feature. Battlefield, meanwhile, is basically the main game running on mobile devices. Somehow, it doesn't look like a total waste of time and actually retains a lot of the "quality" from the main game.
via destructoid https://www.destructoid.com/here-is-a-look-at-both-of-the-official-chinese-pubg-mobile-games-487542.phtml