Your moves seem to correspond my needs for the XCOM hack I'm making. Do you mind me borrowing stuff? With credits to you naturally.

Feel free to use anything you need.

A link to your final hack would be nice.

TECHMARINE

o Servo-arm mechanical third arm (5d tight AP).
o Gun Blessing: the Techmarine can roll+TACTICS. On a 10+, he clears all jammed and overheated weapons held by his allies within close range. On a 7-9, he clears them for everyone in close range. On a miss, he suffers 1-stress.
o Mechadendrites: increase the range of all held weapons from tight to tight/close. Also function as a weapon (3d close AP).
o Servitor Drone: you have a nearly-mindless menial cybernetic slave.

I like those, I will add them as they are! *edit* with minor adjustments ;-)

Playbooks

I'm thinking I can save time by reskinning playbooks from Colonial Marines:

Apothecary: healer. Reskin: Medic
Assault Marine: close-combat specialist. Reskin: schlaghund's Trooper
Devastator Marine: heavy-weapons specialist. Reskin: schlaghund's Gunner.
Librarian: psychic marine. Steal moves from the AW Brainer?
Tactical Marine: general-purpose marine. Reskin: Sergeant
Techmarine: augmented marine with cyberware. Steal things from the Synthetic and the AW Synthetic?

Hm… I'd rather use the trooper for Tactical Marine, keep the sergeant as sergeant and completely make up the assault marine.

Rename Grit to Faith.

Know no Fear (universal move for all space marines)
You start game with 1–Faith. (Optional, the rules below are already making marines better, if you don't use 1-Faith at default, you do not have to change the Black Templars Chapter bonus).
Stress is tracked like in Colonial Marines, six boxes in pairs of two, each pair with an own effect associated (fight, flight, shock), for unaugmented humans (and comparable individuals)!
For space marines: There are six boxes, without any grouping, and no effects attached to them. They still suffer stress (minus Faith), but only once all boxes are crossed they go stress-critical without any effects in between. (This contradicts the Blood Angels' Chapter bonus; change that bonus to: "When you are at 3+ stress, gain +1ongoing to all assault rolls")

Genehanced Post-Human (universal move for all space marines)
When compared to average human physical conditions, a single marine counts as a small group. When fighting human-size targets, you suffer 1 less damage die and deal one additional damage die, regardless of weapon used.

That's a fantastic idea! Wish I'd thought of it...

If you are interested in collaboration, drop me a note.

General

I will reskin "Grit" as "Faith: Zeal. Reduces stress taken from an attack, 1-for-1."

WEAPONS

Bolt Pistol (2d tight/close)

Bolter Reskin: Pulse Rifle

Hand Flamer (2d tight burn)

Flamer (3d tight/close messy autofire burn terror)

HEAVY WEAPONS

Heavy Bolter (4d near/far autofire suppress)

Missile Launcher Reskin: Rocket Launcher

As a great fan of Dark Heresy I would love some downward size compatibility and would give astartes weapons higher stats, countered by massive armour and toughness, so that you can fit in lasguns, autoguns, ork & eldar weapons, special ammunition, etc. as well.

I would also suggest a change in armour piercing: Some weapons reduce armour by different degrees (bolter vs. hellgun), others ignore it completely (plasma-gun and melta). n-ap: reduce target's armour by n-much.

Representing a Space Marine's might could easily be done by treating him like a group, as the not to be f*cked with move from the AW Gunlugger. This way, he automatically deals more damage/suffers less damage when fighting smaller (human size) targets, but when fighting something of his size – like a traitor marine – weapon and armour stats are of the same level.

Oh boy, I have so many ideas…

BTW: There is already someone doing a Rogue Trader hack: http://apocalypse-world.com/forums/index.php?board=21.0 .

Looks good! Let us know how it works out in play.

We played Outpost Epsilon in three sessions, the first being general introduction to the rules, character creation and introductory sequences of the scenario ("You wake up from hypersleep…"). Session 2 saw some "conventional" roleplaying until we all got adapted to thinking in moves. By the end of the session, everyone was in it. Session 3 was completely move-oriented and saw the conclusion of the scenario.

We had:

• A Sergeant (Form Up on Me, Rally & Look Out!),
• a Gunner (Covering Fire, Angel of Death & Battle-Tested),
• a Trooper (Marines Go First, Battle-Tested & Close Quarter Battle),
• a Medic (Medic!, I'm a Doctor, Dammit! & Nerves of Steel), and
• a Synthetic (Core Directive, Overload & Technician)

In short:

• The Gunner was always pondering, whether using Angel of Death was a smart move to take or not, as it might get him exposed or become the center of enemy attention.
• The Gunner chews quickly through gear when using Covering fire and additionally spending extra gear to increase VoF.
• Close Quarter Battle is a very nasty thing, very powerful. But I think it is okay, as all the other characters were special in some way, so the "lame" trooper had something to shine in as well.
• In general: Gear runs out quickly! Most players increased LUCKY as soon as possible for better Scrounging outcomes… I have no problem with that. It gives you the feeling that using guns is not the most important part of war, but being supplied. High BATTLE is worthless without ammo.