Bleachers are pale, shirtless Swarmers with about 50% more health and a harder hit. They are a newer mutation you meet later, and the same tactics as Swarmers work if you bring a few extra rounds.
A Bleacher fights like a Swarmer. It swipes with both hands or opens its arms to grab you. The difference is durability and damage. Mistakes cost more health than they would against a Swarmer.
One Bleacher still falls to the Boot Knife if you keep slashing. With guns, expect to spend a few more bullets than on a Swarmer. Bull Rush into a small group, then stomp each one while it is stunned.
Bleachers appear after the Finding NERO storyline introduces them in I Need Your Help. You see them most in the southern regions, such as Crater Lake.
Their ears pay as well as Runner ears, far more than Swarmer ears. Loot every Bleacher you kill.
Breaker
Breakers are hulking male Freakers that soak up huge damage and can knock you flat with one swing. Treat each one as a mini-boss: stay at range, lead with explosives and finish with headshots.
Deschutes County Militia
The Deschutes County Militia is Colonel Garret's army in the south and the best-trained human force you meet. For much of the second half you work for them at Diamond Lake and Wizard Island. Their soldiers are also the toughest humans in the game to kill.