With the rulebook now adopting the revised victory conditions from the old More Missions pack, we've updated it (now just called the Missions pack) to reflect this.
All that's changed is that the Winning the Game section simply refers to holding the objective, rather than restating what is now the standard way of holding an objective (the rules for this are still given in the front of the Missions pack for those with the older printing of the rulebook). Download the PDFs at the link below.