New players: Don't give up!
If you love the game, the aesthetics, the gunplay, the mechanics, or even the setting, but you find yourself constantly dying to everyone... don't quit!
Keep trying, keep practicing, and keep learning.
Every death, every piece of lost loot, and every frustrating moment is a lesson on your way to getting better.
Marathon is a HARD game, so don't worry about what the pro players say. In this game, even the basic robots will punish you if you make a single mistake.
If you like the game and want to improve, there is only one way forward: don't give up!