Brunton Monocular
$35
Good for seeing animals (I've seen plenty of deer along the tracks), and far ahead along the path.

Multi-plier
$30
For repair or needing to put together a shelter, etc.

Headlamp
$55
Sometimes you're out later than usual and suddenly it's dark - or you're inside somewhere with no light.

Wind-up flashlight
$25

LED light sticks
$7.50

Radio pouch
$29

Radio x2 set
$80
Keeping communication if 2 people are far apart enough on the trip, during scouting, etc.

Camelbak MULE hydration pack
$100
Gotta keep hydrated, also seems to serve well as a small backpack.

Wire-saw
$8
Never know if you have to cut through some wood to build a shelter.

Fatboy Versipack
$70
A decent size waist-pack (minus the gun)
Medium assault pack
$40
Bigger packpack which supports hydration reservoirs (Camelbak)

Individual first-aid kit
$25

Gear pouch
$11
Good for camera or other supplies

Sweat-wicking t-shirt
$10
Important to wick away moisture, especially if you've been sweating and it gets cold later

Rain poncho
$15
Don't wanna get caught in a storm without this

Water/chemical resistant leather gloves
$33
Helpful when climbing rocky or rough terrain

Padded patrol belt
$35
Can add MOLLE pouches, etc. for carrying gear

Total: $608.50