I've looked at this map the first time now and i basically learned all of it exept some vehicle spawns just playing the game - without consulting outside scrouces.
Containers, towns and places like the school or the military base have the best stuff. If you pay attention to where people jump you figure that out very quickly.
Cars are a bit more tricky. But eventually you learn where to expect a car and where not.
I don't think there's outside knowledge required here. It's just the kind of nuances you eventually learn that every competitive game has. And i don't know, discovering the good places was kind of fun.
Yep, outside of a few edge cases I basically "learned" that map while playing, just like any other map-based competitive game.
And just like all of those other games, of course people who've studied the map / played more will have an advantage. From FPS to racing games to golf, learning the course is part of the skill of playing.
Also, there's still no guarantee (except for the 100% cars, but vehicles are common enough). I've dropped in plenty of unmarked places and got decent loot, and dropped in plenty of supposedly high-loot places and ended up with some hot garbage. You're just tilting the odds a little bit.