Multiple players carry bounties on their heads for one, two, or all factions. They are a great bit of role play and additional bits for your character, or other players. Bounties are based two factors. The first is the flaw wanted. The higher the wanted flaw score your character has the higher the bounty. The second factor is in game actions by your character or other players. In other words if you piss someone off they may put a bounty on you.
To collect a bounty your character needs to bring physical proof of the target to a GM. This means the living character, or a physical object of their dead body needs to be brought to a GM to receive the credits. A GM cannot cash in a bounty with another GM.