I have one, its capable of becoming a long campaign give or take. Based it off tEP and FS.

The tyrannids are on the brink of invading a planet. Said planet has been an imperial world. An inquisitor sent to investigate has yielded some information on the nids. In truth he/she has already obtained samples and have begun working on a neuro-toxin specific to the strain of DNA.

Imperial inqusitor made contact with DW but vanished. The inquisitor gets abducted by Chaos cultists but leaves a trail of clues. Kill team is despatched to recover the inquisitor and his/her work.

They encounter Genestealer cultists and clues point them to an abandoned location. This is actually a front for Chaos mining operations. The team has to infiltrate the mining point and discovers that the inquisitor has taken his/her own life. All is not lost as the Inquisitor leaves clues to a location to his/ her work in a DW cypher. Inquisitor also leaves clues to what the Chaos cultists are trying to achieve.

Team discovers that Chaos has been in fact working hard on the planet to mine a rare resource for a weapon of mass genocidal proportions. They discover schematics and also the location meant to be used.  After leaving location, they are ambused by genestealers and a Broodlord.

Kill Team travels and retrieves the work of the inquisitor. Returns to watch station to process the neuro toxin.  The kill team then reports their observation to the watch commander.  They are ordered to deliver the Neuro toxin into the main hive ship and will be despatched by a strike cruiser.  They are to penetrate the hive fleet and deliver the toxin to the heart, the Spawning Chambers.

After that, the team is informed that while they were tied up by the tyrannids, the watch command has deciphered the schematics and it is a mobile mass destruction weapon capable of being deployed in stealth.  Coordinates points that the Chaos forces plan to strike at an imporant forge world supporting the bulwark of the imperium advance into the Sector.

The prototype will be delivered at low orbital range, killing millions.  The commanders send the kill team and deliver an emergency warning to the planet.  As the Chaos forces have already gotten a headstart, the DW KT will be sent via a fast vessel to the location of said attack.  The DW has also requested aid from a nearby Crusade outpost.  The kill team arrives on scene to find the several crusade ships in combat.  The KT needs to makes their way to the flagship of the enemy and disable the weapon.

Idea

Return to Tauntalus: (extraction in Deathwatch RB)

contrary to what was believed would happen, Tauntalus has not been consumed by the tyranid horde. Augars and astropaths are too far out of range of out of the shadow to knw what is going on. Send in the Deathwatch.

Its belived the plans Magos Vyakai's cryptic and complicated plans otained within the datacore are to blame.

The deathwatch go back in to find that the tyranids are still in the midst of a full scale invasion with a planet devoid of humans. The tyranids are fighting each other. It almost seems that thier are 2 hive minds. Proceeding to a secret research facility they find a horrifying secret, a gate made of fused flesh. Proceeding into what happened they discover that Vyakai's plans were to let a race of "Enslavers" Control a Synapse creature. It rapidly spread its infulence to others. The hive mind is unprepared for such a threat and unable to control the loss of synapse creature and thier minions. Every synapse creature lost is a victory for the enslavers. Do the Deathwatch join in and take a side? or do they order exterminatus?

My question is: is this scenario even feasible? If an enslaver was in the material realm before the shadow cut them off from the warp could they be attracked to a synapse creature and control it? or would being cut off essentially kill it? iDeas?

I wanted to enter the scenario contest, but my upcoming work schedual is pretty incompatable with the looming deadline. So, I thought I would post the ideas I was working on here...

Given the tight word restriction, it seems that a plot-heavy entry would be problematic. I was thinking of going with a fairly standard mission, but in a very destinctive setting. Some possibilities are:

UNDERWATER- Sent to recover something from the wreakage of a spacecraft, now lying on the ocean floor of an unexplored world, the Killteam has to contend with some large native predators, possibly in addition to survivors aboard the wreak, trapped in an air-bubble. I was going to use the Heavy Gravity rules to simulate the preasure of the deep, combined with a reduction in missle weapon ranges. Plus, even an Astartes' enhanced senses are of little use in the inky-blackness of the deep, necessitating the use of armour-mounted stablights. In fact, I was thinking of giving one of the predators a boi-luminescent "lure" to catch the Killteam's eye ("There's something moving down here!").

POLYPHEMNOS- The fungal deathworld briefly described in the Rulebook would be an interesting setting for a mission. I like the idea of movement-sensitive fungi which burst open when touched, covering everything in the vicinity with corosive acid that slowly reduces the effectiveness of power armour...

SANDSTORM- Orks don't get much respect as opponents in DW; to counter that attitude, I was thinking of a mission where the Killteam is sent to a small mining town on a desert world to protect them from an on-coming ork mob until an Imperial Guard garrison can be set up there. This should be pretty straight-foward, but things become complicated when thw ork's resident Weirdboy accidentally summons a massive ion-charged sandstorm, drastically reducing vision and robbing the Killteam of their greatest asset: ranged superiority...
 

The Enemy of my Enemy is a great diversion.

All 3 fronts are suffeffing a hard time. Time must be bought, reinforcement and antrechment is required but the constant war prevents any progress.

A daring plan is proposed by the Fleet Logisticien, the plan as started, the DW was made aware too late...

Phase 1 - Capture, subdue and transport as many tyranid vangard organism as possible

Phase 2 - Spread lies about the critical nature of a newly conquered planet

Phase 3 - Store vary important Chaos Artifact (importance is relevant since artifact is to be sacrificied) on said planet.

Phase 4 - Wait for Chaos an TAU force

Phase 5 -  release vangard organism on planet

Phase 6 - Praise the Imperator

-----------------

DW transmisttion interception - "Damned fools", "Suicidal" and "Glorious", mission accepted.

Storm Warden transmittion - Finally something challenging...

Unknown alien transmittion - "Beware Monkieg, you have choosen it's resting place as a war world. Kain won't be happy and neither my damend Sisters banshee watching over is toomb!"

Chaos - "My great Deamon Prince, that artifact you have beenlooking for well we found it... the sorcerer says it's a trap." "Traps, I love traps!"

Tau - "They think we think they don't know what we think... Yet we think they think... For the greater good?" "It's Obviously a trap but for whom?"

IG -"When they said, it was a paradise world, they meant for deamons?" "Well the pictures from space where different... What do you thik that structure is? Arrghhhh.... "

HiveMind - "Wait I told them to stay put once they found a world...  Where did they go..." "Oh wait there they are and look at those, pointy cans, green shrooms, pink skishys... so lot's of food!!!! Even dangerous little meat cans! Time to send out the Dagon!"

Necron Lord - "Not now Momy 15 more thousand years... Wait whats that noise?"

You're gonna love this:

The kill-team is charged with leading a xenocidal campaign against the remnants of a race of small, stout humanoids who have holed up underground on a planet with harsh conditions. Details on the race are classified even for the DW kill-team at the order of the Holy Inquisition itself and they are forbidden any kind of contact or exchange with the xenos.

Of course it turns out there is some sentient, non-humanoid native life which intel did not pick up on and they may or may not shed some light on the story of the dwarf-like refugees the PCs are supposed to exterminate.

Whatever the PCs learn or do not learn, there is no way of getting around orders and eliminating their technologically-gifted targets - at least not without committing a court martial offense.

Alex

PS First poster who can guess the name of the "xeno" race is a xeno lover and heretic.

What Forbidden Lore would it be to know that they once used to be allies with the Empire, and the High Lords were simply grateful the Tyranids did the job they couldn't?

Forbidden Lore (40K Rogue Trader)?
Forbidden Lore (GW Business Policy)?

Both grimdark and mysterious arts by themselves. Punishable by a fate worse than a fate worse than death, of course.

Alex

I like reading these scenario ideas, and there hasn't been any movement on this Thread in a while, so I thought I should resurrect it...

At The Mountain Of Madness- I keep hearing that Guillermo Del Toro (Hellboy, The Devil's Backbone) has a movie adaptation in the works, and it struck me that H.P. Lovecraft's novel would work perfectly for a Deathwatch mission: a team of xenoarchaeologists on an arctic world reported discovering a massive complex of underground ruins created by an unknown and presumably extinct xenotype. The excavations were proceeding apace, then suddenly all contact with the research team was lost; the Killteam is sent to find out why. Turns out, the thing that killed the builders of the alien city is not extinct itsself...

Some little ideas I've thrown into the game or the PCs have come up with on their own accord. Just little things to think about:

Our Honour, Personified

Between missions, give the kill-team the task to design their squad banner. Try to emphasise that it should be a scene in character where each member of the kill team can contribute to the design of the thing. If they d a good job, give them a small devotional scene where their banner is rituallistically blessed by Your Local Chaplain (tm) and let the squad take a back banner for free. My guys have started quarrelling more for who gets the honour of bearing the standard into battle than who gets to be the squad leader (needless to say, I let anyone act as the banner bearer, not just the squad leader as indicated in the core book).

Armed for Battle

Run a scene before combat drop where the group perform their ritualistic donning of armour, chosing weapons, prayers to the God-Emperor and His Primarchs, or what have you. What rituals do the kill team perform? Do they perform them as a group or in isolation?

Celebration!

How does the kill-team come back from successful missions? With piety and prayers? With a quiet determination that the job is well done? With boasting and laughing between members of the squad as to who defeated the most Orks, or whose Bolt shell killed the Tyranid Warrior?  Do they call for a victory feast, light a votive candle, or slam a fresh clip in and go to the firing range to get more practice in?

Consider the Predator...

What are the vehicles the kill-team use mean to them? Do they have one Rhino or Razorback they seem to like more than the others? Does its machine spirit have any strange quirks? Does the Tech-marine have any rituals or duties that he performs with the machines between battle? Do they thank the spirit of the machine after a successful mission and, if so, how?  (My guys have told me if I ever destroy the Litany of Fury, their Razorback, they will personally hunt me to the ends of the earth. The Litany is an impatient machine that despises being pristine and perfect. It grants a +5 to BS and Drive rolls once it's taken its first critical hit during the mission, but inflicts a -5 Penalty when it's completely untouched by enemy fire or combat attacks.)

Armoured in Faith

What rituals do the Battle-brothers perform for their armour and weapons? Do they simply allow the tech-marines in their watch station to repair and repaint their armour after battle, or do they sit patiently with a fine hair brush and a pot of enamel and painstakingly cover every scratch and chip on the paintwork themselves? What devotional totems to they add to their weapons, and do they mutter prayers to the God-Emperor, their Primarch or the Omnissiah while they add them? What is the astartes' reaction if a deathwatch serf slipped and fell on their armour? Do they believe that the spirit of the machine is angered if they use clips from another battle brother's boltgun?

Adeptus-B said:

Now I could be wrong (it's a fluid situation) but I understand that this movie has moved from "In development" to "Mired in development Hell." Meaning it's not likely to get made any time soon. A real shame, as I was excited about this one, too...

Can you imagine your player's faces when their Marines get d100 Insanity Points each because they failed their Fear tests? Maximum GM trolling.
Still the idea is right.

Alex

Word has gotten to the Inquisition that a meeting is taking place between Chaos upper command and the Tau Leadership on board one of their Orbital stations. The Chaos forces will clearly betray the Tau even if they reach some agreement, but in the mean time any co-operation will increase the pressure on the Imperial forces dramatically. The orbital is deep in Tau space and well defended, the Chaos forces are significant and the Tau are not so nieve that they haven't got enough security to deal with it. Fighting in without the diplomats escaping seems impossible and an attack by the Imperium would just stand to strengthen the resolve of those that are trying to arrange for the truce.

 A desperate level of sanction is required and the Inquisition are using a massively important asset to take care of the problem. All the team has to do is sneak into the system as descreately as possible and extract the Callidus assassin without anyone knowing they were there at all.

I've just begun laying the groundwork for a Moby Dick sub-plot in my campaign: a Deathwatch Captain the Killteam frequently works with bears terrible scars from an encounter with a daemonic entity that haunts the voids preying on vessels (the Eye of the Warp from the Dark Heresy sourcebook Creatures Anathema). He doesn't like to talk about his 'near-death experience', but it is clear that he is still deeply troubled by the encounter, decades later. At some point in the future, the Killteam and the Captain will be dispatched on a small strike craft to assist on a beleaguered battlefront. En route, the vessel recieves a distress call from a ship under attack by you-know-what. The Captain looses it and derails the (time sensitive) mission to persue his 'white whale', forcing the players to take sides: try to get the mission back on track, or follow the unstable Captain on his suicidal quest for revenge...

Adeptus-B said:

Love it. Remember that the Captain has to die to teach them the folly of obsession. If you don't have creatures anathema you can create a daemon ship or a even particular Tyranid Kraken.

I've been kicking around an idea where the Kill-team gets caught in the crossfire between two chaos legions over a deamonic artifact, something like a dry, withered heart that contains the spirit of a vanquished bloodthirster. One side wants to chuck it into the sun, thereby releasing the deamon, and the other side wanting to devour it for it's power. Either way, when the brothers get their hands on it they discover that it has a corrupting influence, presenting them with a challenge on how to dispose of it.

Also I've discovered that Thousand Son's disguised as inquisitorial muck-a-mucks are really, really good at stealing freshly liberated xenos/chaos tech from battle brothers right after a mission.