The new missions are available at the Autumn Leaves outpost which can be found at (10032,9967).

Autumn Leaves is a heavily fortified office building which have been converted into a safehouse. It's housing some survivors led by a small squad of marines under the command of a Captain named Kubrick.

They have set up an outpost in an abandoned office building. It is a heavily fortified place, and is serving as a headquarters for local survivor resistance.

A few families and refugees are under their protection and the fortification indicate they have been here for a least some weeks.

It could appear as though they have a surplus of goods from time to time, and maybe they will sell some of it to you?