Tips

Solo: Try to train in places where it is easy and you could train till high rounds, Get the wonder weapon, it will help so much in those high rounds.

Examples: Sliquifier, Paralyzer, and Ice Staff.

Online: Try to be the better player, use the bank get OP weapons, do anything so  you can survive longer. If players are too far away DO NOT go after them most likely you will die trying to revive them or they will bleed out before you get to them. Finally, try to camp, in Buried there are lots of camping spots like juggernog. If you are smart you could stay in there almost forever, and get to high rounds.