Armor , Hats, and other outfits

Hats:

* Cap
* Frying Pan
* Cooking Pot
* Chef Hat
* Headcrab Hat (zombies ignore you, unless you attack)
* Metrocop Helmet (combines ignore you, but limited clearance to combine bases)
* Combine Helmet (combines ignore you, but limited clearance to combine bases, more than cops)
* Elite Helmet (combines ignore you, unlimited clearance to combine bases)
* Scanner Hat
* Rollermine Hat
* Gnome Hat
* Hula Doll Hat
* Turtle Hat
* Antlion Hat
* Globe
* Breen Bust

Other Outfits:

* Medic Outfit (comes with healer)
* Metrocop Outfit (used as disguise)
* Combine Outfit (used as disguise)
* Elite Outfit (used as diguise)
* Scientist Outfit (used to get into rebel labs)

Armor:
* Protection Helmet (damage decreases 10%)
* Protection Armor (damage decreases 20%)
* Shield Generator (damage decreases 25%)
* Mega Shield Generator (damage decreases 35%)