Factions - Albion Online Wiki
https://wiki.albiononline.com/wiki/FactionsEach faction has its own crest and cape. Players can join and switch between any of the six factions. Faction Standing can be earned through Faction Warfare, doing PvE content while "faction flagged" as well as gathering for your active faction.Brief information on how to join a faction can be found here below, for more information, be sure to check out the Faction …
Flagging - Albion Online Wiki
https://wiki.albiononline.com/wiki/FlaggingFlagging down means that your character is turning back to a friendly status, which means that you can no longer attack players who are not hostile. Hunter or Hunted. Player killing (PK) is what makes Albion Online desirable for some players, so it is important that they understand how the flagging system works.