In Rule 2.9 (Outsiders), replace “As a weekly action, the Expedition Leader may add an NPC character to the GNDT. These characters may also be referred to as Outsiders.” with:-

As a weekly action, the Expedition Leader may - for each Outsider type listed in this rule - create one Outsider of that type and add it to the GNDT.

To the bullet list in Rule 2.9 (Outsiders), add:-

• Rat. Instead of creating one Rat on Row 0, the Expedition Leader may create X Rats in any Indoor Dirt Location (where X is a number of the Expedition Leader’s choice, no greater than the number of Meals in the Stockpile).