customs is a reliable one to start with.
Bro legit, abuse scav on your first wipe, get to know the maps start with woods because you're gonna use it a lot for scav killing missions and looting. Customs is alright but you really need to know the game otherwise you're getting fucked each time you get on. Factory is a shit show for new gamers don't go there yet, again abuse scav, look at some videos, you go there as PMC, you say bye bye to your money that fast.
Rest of the maps are end game type of shit, once more, abuse scav lol