With each separate party having different amounts of equipment and varying skill sets. I figured it would be prudent to compile a list for this so we can have a quick reference guide.

For example:
Spend Thrift:
Equipment: Customized precision gloves
Revolver
Antique Terran BOSUN rifle
Skills: Hand to hand combatant
Marksmanship
Stealth
Smooth talker

Or something along those lines. I'm only setting this up since the CMC party pretty much stole a lot of stuff from the Diamond Dogs and I'd like to see what kind of stuff they took.

Party: Cutie Mark Crusader

Sweetie Belle
Equipment: Ghost Suit
Ghost Goggles
Canister Rifle x1
Pistols x2
High Frequency Blade (HFB) x 1
Skills: Teleportation
Barrier Spell
Marksmanship
Siren Song
Special Traits: Psychic

Scootaloo
Equipment: Reaper Power Armor
Scythe Gauss Pistols x2
G-4 Cluster Bomb x??
D-8 Demolition charge x??
High Frequency Blade(HFB) x 1
Skills: Marksmanship
Demolition
Hand to hand combatant
Weapons Maintenance
Special Trait: Genetically Enhanced

Apple Bloom
Equipment: Custom Laptop(stolen)
Custom Laptop 2.0(Replacement)
Skills: Engineer
Hacker
Demolitionist
Special Trait: Technical Expert

Rainbow Dash
Equipment: Reaper Power Armor
Scythe Gauss Pistols x2
G-4 Cluster Bomb x??
D-8 Demo charge x??
Fusion Cutter Blade x 1
Skills: Marksmanship
Demolitionist
Hand to hand combatant
Weapons maintenance
Piloting
Special Trait: Psychic Resistant

Rain Sight
Equipment: Precision Gloves
Warp Blade Gauntlet x1 (Presently Unusable)
Rail Rifle(Lost)
Pistol x1
Assortment of Drugs and Chemicals
Skills: Marksmanship
Hand to hand combat specialist
Weapons maintenance
Piloting
Chemist
Special Trait: Psychic Resistant
Part Zerg

Eye Glass
Equipment: Customized Dominion Marine Corp Power Armor
High-powered Sniper Rifle
Gauss Rifle(presumably)
Skills: Marksmanship
Keen Observation
Investigative Mind
Special Trait: Psychic resistant(presumably)

Collective Inventory:
Diamond Dog Power Armor(Damaged)
Missile Launcher x1
Fusion Cutter Blades x??
Rail Rifles x??
Various assortment of munitions
Dominion Bits x??

Party: Ghosts

Lyra Hearstrings
Equipment: Ghost Suit
Ghost Goggles
HEV Helmet(presumably)
Precision Gloves
Canister Rifle(presumably)
HFB(presumably)
Skills: Cloaking(Only available with Ghost Suit)
Teleportation
Psychic Domination
Marksmanship
Weapons Maintenance
Special Trait: Psychic

Skyfall Fleming
Equipment: Ghost Suit(Comes with grappling hook attachment)
Ghost Goggles
HEV Helmet
Precision Gloves
Canister Rifle x 1
Gauss Pistol x 2
Combat Knife x 2
Extendable Sword x 2
HFB x 1
Smoke bombs x ??
Skill: Cloaking(Only available with Ghost Suit)
Teleportation
Construct Conjuration
Marksmanship
Close Combat specialist
Invisible Aura
Special Trait: Psychic
Above average physique

Seeker
Equipment: Warp Blade Gauntlet x1
Smoke bombs x??
EMP grenades x??
Skill: Cloaking
Blink/Teleport
Void Sight
Special Trait: Psychic
Void magic user

Collective Inventory:
Military Grade Precision Gloves x??
Stimpacks x??