Marathon
Marathon: Leave on a Risk Window, Not a Full Bag
Marathon extracts are fights with a door. Full bags move slow. Slow runners die in the last twenty meters.
Weight is a PvP stat
If you cannot sprint to cover, you already lost the extract. Drop the fourth gun. Keep the contract item.
Marathon third parties listen for the door. Pre-aim the common hold and smoke or flash if your kit has it.
Do not extract on a hot clock
If two teams just finished a fight next to the elevator, wait or rotate. Greeding the same door is a 3v3 you did not book.
A later extract with a lighter bag still progresses the account. A wipe resets the session.
Solo vs trio rules change
Solos should take quieter contracts and odd extracts. Trios can brute a door if they have utility. Do not mix those plans.
Ping the leave. Silent teammates who keep looting while you hold the panel cause the wipe.
If you want extra reading after this walkthrough, you can also check more game information.