[Left]Force #1- This is the standard gaurd they rome around the cities looking for trouble makers. [Right]Force #2-These guys will come after you have killed a few of the force #1 guys they are a little stronger.
Clones- These are the clones probably the second strongest and they have gas masks so teargas is in-effective.
Force #3- These are probably the strongest of them all other than the general.
The General- This is a really tough foe these guys will pop up ever once in a while when you have been really bad.