Thought I'd run the intro scenario with some slight theme modifications and the characters from the ALIENS movies. Here's the /preliminary/ work-up:

Comments, accolades, criticisms, flames, and outright personal attacks are welcome

ALIENS MOVIES
RELEVANT CHARACTERS AS PC'S IN A DARK HERESY GAME

CHARACTER DARK HERESY EQ. EQUIPMENT
COLONIAL MARINES
Lt. Gorman Arbitrator -M4A4 Pistol, Frag grenade, Fatigues (AP1all)
Sgt. Apone Guardsman -M-41A Pulse Rifle, M4A4 Pistol, 8 Frag Grenades, Combat knife, Fatigues, Flak Helmet, Flak Vest
Cpl. Dwayne Hicks Guardsman -M-41A Pulse Rifle, M4A4 Pistol, 8 Frag Grenades, Combat knife, Fatigues, Flak Helmet, Flak Vest
Pvt. Drake Guardsman -M56 Smart Gun, M4A4 Pistol, 8 Frag Grenades, Combat Knife, Fatigues, Flak Helmet, Flak Vest
Pvt. Vasquez Guardsman -M56 Smart Gun, M4A4 Pistol, 8 Frag Grenades, Combat Knife, Fatigues, Flak Helmet, Flak Vest
Pvt. Hudson Guardsman -M-41A Pulse Rifle, M4A4 Pistol, 8 Frag Grenades, Combat knife, Fatigues, Flak Helmet, Flak Vest
Pvt. Frost Guardsman -M-41A Pulse Rifle, M4A4 Pistol, 8 Frag Grenades, Combat knife, Fatigues, Flak Helmet, Flak Vest
Pvt. Wierzbowski Guardsman -M-41A Pulse Rifle, M4A4 Pistol, 8 Frag Grenades, Combat knife, Fatigues, Flak Helmet, Flak Vest
Pvt. Crowe Guardsman -M-240 Flamethrower, M4A4 Pistol, 8 Frag Grenades, Combat knife, Fatigues, Flak Helmet, Flak Vest
Cpl. Dietrich Guardsman-medic -M-240 Flamethrower, M4A4 Pistol, Medic Kit, Fatigues, Flak Helmet, Flak Vest
Cpl. Ferro Guardsman -M4A4 Pistol, Fatigues
Pvt. Spunkmeyer Guardsman -M4A4 Pistol, Fatigues

ASSOCIATES
Ellen Ripley Arbitrator -M-41A Pulse Rifle, Fatigues
Bishop Tech-Priest -Combat Knife (to do that thing), Fatigues
Carter Burke Scum (corporate)/Adept -M4A4 Pistol
Dillon (pre-incarceration aliens3) Cleric -Shock Maul p.139, Heavy Leathers

WEAPON EQUIVALENTS
ALIENS DARK HERESY
Combat Knife =KNIFE P.139
M4A4 Pistol =Autopistol p.130
Shotgun =Combat Shotgun p.130
M-41A Pulse Rifle =Autogun
- Grenade launcher(8) - Small Frag grenade 131 (d10+5dmg)
M-56 Smartgun =Heavy Stubber p.130. +10BS when not moving
M-240 Flamethrower =Flamer p.131
M-6B Rocket Launcher =RPG Launcher p.131
M-92 Grenade Launcher =Grenade Launcher p.131
- Frag p.131
- Impact Grenade p.131
- EMP grenade p.131
- Smart Mines p.131
M-90 Minigun =Heavy bolter p.130
WY-102 Sniper Rifle =Hunting Rifle

OTHER EQUIPMENT

Motion tracker
Hacking Device
Welding Torch (tool)
Flare
Shoulder Lamp
Image Intesifier
Flare Pouch
Ammo Box
Armor parts
Medkit/stimpack

ARMOR
Fatigues (AP 1 all)

and so on...

Dietrich, Ferro, Spunkmeyer, and Ripley should switched to adepts. Ripley just takes an elite advance from Hicks to get the weapons training.
Burke would be a Scum. He doesn’t have any definable skills other than being out for his own good.
Hudson is a case where I would be tempted to make him an adept with a few elite advances, since he is an electronics (tech) specialist. Otherwise he would have some sort of specialist training from the Mechanicus as a Guardsman background package.

I would consider changing flak vest to light carapace chest and legs. Otherwise add legs to the flak coverage.
Maybe put the Compact trait on the GL in the M-41A to differentiate it from the stand alone piece.
Motion Tracker = Auspex

All excellent ideas!

I was going to put the main characters together and then let the players choose as necessary.

Jay H

You might just as well give them all Guard Flak, they would and should need it.

Hicks doesn't have a pistol as his backup weapon. He has a shotgun.

Keep Ferro and Spunkmeyer as Guardsmen. They obviously have taken Pilot(Military Craft) and Adepts don't get that. I agree that Ripley is more of an Adept, though. Remember, in the first movie she is the communications officer of the ship.

For Hudson, I'd put him as an Arbitrator. Arbitrators get both Security and Tech-use early on (rank 2), yet still retains the feel of a militaristic class.