Rat Runs

While this card is on board, every Mercenary you control has Outrider, including Mercenaries that come on board later: one that came on board during a watch can be dispatched that turn, but only to an expedition, not to the mothership battle (802.11). Your opponent's Mercenaries don't get it. Once the expedition is claimed, it works from the logbook for the rest of the game, for the player who claimed it, whoever launched it: "you" is then the claimer (304.5a).

Crew dispatched here on their own turn make progress, whoever launched it; on the opponent's turn they can only fight (706.3a). The first player to reach 5 progress claims it and gains 2 spoils.