Yeah, it might be more difficult for someone whose first game of this sort is PUBG, to gain their bearings. As someone who's played shit loads of ARMA mods I knew what to expect day one, and more importantly, how to outplay people using little tactics I picked up during my ARMA play (constant situational awareness, using terrain as cover for movement, properly gauging my visibility at all times, looting quickly and quietly, making good use of the shittiest loot and playing around the constraints of shitty loot, etc). I could see someone without that experience having a poor time with their first few matches.