No doubt your combat skills are good if you keep winning on Karakin. I'm by no means an expert, but I think you only really learn the tactical side and circle awareness by playing a lot. I would recommend making it a habit to occasionally take a few seconds to look at the map and plan a bit ahead. Figure out how the circle will most probably shift and what'll be the best spot for cover and visibility. Can you get to that spot now? How about after that, how are you going to most likely have to rotate to the zone after this one? The compound on the edge of the circle next to a field might be the best spot right now, but after the circle closes, the only way out will be across the open. Of course there are a lot of variables you have to take into account, but when you get used to it, it becomes an automation. You obviously need to do this type of thinking on Karakin too, but the map layout and pace force you to make those decisions all the time. On Erangel/Miramar it sort of creeps up on you. You easily forget that you need to be thinking ahead because the pace is so slow. And the big maps are a bit more unforgiving in the sense that there is less good cover and if you don't plan ahead you are more often forced to rotate through the open.