This is directed towards casual players for Custom Games, and less towards other, more serious players (This is also a thing to help me rank up).
All that I know is that an open raid is a raid base of a clan and they set the privacy to open and let randoms try to take it over.
Anything else? Rules? Expectations? Tips?
Throw yourself at the single, heavily defended entrance to the base, armed with only a pistol until the clan inside gets bored, or by some fluke you manage to turn the tables and they end the game to kick you. This is considered a win state.
Expect other players to shoot on sight, and be suspicious if they do not.
They are a sad excuse for “clans” to host farming sessions in customs, if you win they end it and boot you or they just farm you at spawn 