Rebel Leader : Medic skin, Slightly more health, Spawns with AR2/Crossbow.

A zombie citizen (Basicly a normal citizen skin with a headcrab on its head, As seen in half life 2)

A More Aggressive Strider [ One That Walks Over to You And Tries to Stomp On You] So this strider wouldn't care about what it's stepping on, you could lead it into stepping on explosive barrels this strider would also have 2 stages the first one being the normal strider and the second one the aggressive strider

Shadow Headcrab. (Normal fast and poison) A normal headcrab that stays invisible tll npc/player(s) are spotted and jumped at, Or they can be called a Ambush Headcrab

Elite metropolice: spawns with an AR2 and has a manhack on its back, it spawns with two other combine metropolice. (rare chance to have two manhacks)

APC Tank: Acts like a normal apc, a metrocop is hanging onto the side assisting the driver. the apc is unable to use the rpg attack and is restricted to normal gun attacks.

can officer: if you dont pick up the can you get a boss fight agianst him {the pick the can officer} it would be a admin only npc