The Logging Camp Infestation is the first nest zone you burn, at the logging camp at the foot of O'Leary Mountain in Cascade. You clear it in Clear Out Those Nests to keep Freakers away from the safehouse while Boozer heals.
Nests burn, so bring Molotovs or plenty of fuel and rags. Toss one into a nest and step back, since Freakers pour out when it catches. Fight near the doorway so they come to you one at a time.
The O'Leary Mountain Safehouse up the hill has kerosene and rags in its loot. Stock up there before you head down to the camp.
Image: Bend Studio / PlayStationPatjens Lakes Infestation
The Patjens Lakes Infestation is a small Belknap nest job with 3 nests, and an easy first full infestation after Clear Out Those Nests. It pays Hot Springs Trust and credits.
O'Leary Mountain Horde
O'Leary Mountain Horde is a 25-Swarmer Horde in Cascade, one of the Horde Killer targets. It opens after We've All Done Things. Clear it for 2,000 XP and 1,600 Trust at Copeland's Camp.
O'Leary Mountain Safehouse
The O'Leary Mountain Safehouse is the converted Forest Service fire lookout Deacon and Boozer live in at the start. It is your first safe place to sleep and save, and it has a stash of crafting loot.
Pioneer Cemetery Infestation
The Pioneer Cemetery Infestation is a 3-nest job at an old Cascade graveyard. It pays Copeland's Camp and shares the area with the Old Pioneer Cemetery NERO Checkpoint, so do both together.