Wendell is looking to find his lost Vietnam Lighters and asks if you can help him, in return he will allow you access to his weapons locker. The Lighters are hidden in bunkers all over Hope County so it’s a good idea to leave this Side Mission until near the end of the game. To aid you in your search, you can purchase a Map of Wendell’s Vietnam Lighters from any shop once you start this mission, this will display them on your map.
Rae Rae’s Pumpkin Farm
Southeast of Stone Ridge Chalet
Whitetail Park Visitor Center
Southeast of Rattlesnake Trail Bridge
Once you have all the Lighters on you, make your way back to Wendell and hand them over. As thanks for collecting them all, Wendell will grant you access to his armory where you can stock up on ammo and healing items.