Bethesda has detailed the new PVP mode that will be coming soon to Fallout 76, called Survival. The regular experience will be called Adventure Mode while the PVP experience will be called Survival Mode and both of them will be accessible from the main menu.
In Survival Mode, all players, except your teammates or event groupmates, are automatically flagged as hostile toward one another by default. There will be no “invitations” to PVP combat in Survival mode and you can attack other players without restriction from the very first moment.
Furthermore, level scaling in Survival mode will work the same way it does in Adventure mode today. As Bethesda claimed, this will help to level the playing field a bit and give newer characters a fighting chance against high-level players they might encounter during their adventures in the Wasteland.
Bethesda plans to experiment with different rules after Beta release, such as death mechanics. Currently, players who die in Survival mode will be unable to use the seek revenge respawn option against their aggressors and can only choose to respawn at their C.A.M.P. or Vault 76. The team is also planning to award you double the Caps when you kill another player, and they may drop their Aid or other items in addition to their Junk.
Last but not least, Bethesda aims to roll out the Survival Beta in March 2019!