Behemoth: Huge modified komodo dragon-like bodies with heavy armor plating and venom, as well as heavy artillery. They stand higher up on their four legs than their ancestors.
Snapjaw: Large crocodile-like machines.
Stalker: Panther-like machine with cloaking technology.
R.A.M.: Bighorn sheep-like machines the size of a horse, horns can be used as weapons.
Longneck: Huge giraffe-like machine with a flat head.
Alces: Moose with blade-like antlers.
Deathhorn: Body of rhino with the horns of a ram, rhino, and longhorn each with each own weaponized purpose (electrified, etc).
Watcher: Huge hawk-like bird.
Thresher: U-boat great white shark (only in the facility, scanned by the HUD)
Chromeback: Gorilla-like machine with assault weapons.
Zeta: Wolf/hyena hybrid machines, differing in sizes for different purposes, that travel in packs together, razor sharp claws and teeth.