Level 1
Level 2
Level 3
These can be taken in any order but it is recommended to take the ones near your starting point and work your progress from there.
Specialist Missions are story missions that will permanently unlock a specialist (unique gun/fang for hire) Prioritize these whenever you can to have more options in selecting your party members to help you out in missions or if some of them are recovering.
These missions are triggered automatically after reaching certain resistance levels/thresholds. In order to fully liberate the region, you have to complete the last mission in this list:
Some side missions only become available after liberating outposts, completing a preceding mission (chain missions), or completing certain story missions. These can be tackled or completed in any order.
Special Delivery
Green-Busch Fertilizer Co.
Kellett Cattle Co.
Though optional, they should be prioritized due to the loads of cash and perk magazines you can find in these stashes. Hints that will trigger their locations will come from various NPCs such as those randomly encountered, rescued, or occupying liberated outposts. Whenever you see an NPC with the diamond icon over his/her head, make sure to talk to him/her to at least get the Prepper stash location marked on your map.