List of Fodder Enemies
This has all the previous enemies, but doesn't introduce any new ones.
As well as the previous enemies, TAG P2 also introduces:
Maykr Drone Change
The Maykr Drone was originally fodder at release. They were weak and did small amounts of damage. However, unlike other fodder enemies, they took three fuel to chainsaw. Eventually, in an update, maykr drones were changed to the heavy class.