Capture the Flag.
It was an easily understood concept. Two teams defend their flags against one another and attempt to steal the opponent's. Should one team manage to capture their opponent's flag and bring it back to theirs, they win.
However, Game Guild made this particularly complex by adding an extra element. The flags were chosen participants. To further add to the complexity, should a flag-bearer die, the killer would obtain that flag without fail.
"Wait, why don't we just give Bob the flag? That way, we will never lose the flag!" Noc had a big brain moment.
"Doofus, didn't you listen to the explanation? At the start of the round, the guild leaders bear the flag. Once a participant dies, they will only revive after 30 minutes," Clive informed.