Campaign Ideas

Here are some ideas for campaign stories.

Campaign: Oh what a lovely war (Orks vs Tyranids)

Tyranids have infested someone's planet.
A nearby War Boss fees that his boys would enjoy stretching their kill muscles while gathering some gear that the previous occupants have left behind.

Mission One : Gather the stuff
Maelstrom of War 4 : The Spoils of War
The Boys are busy gathering good stuff when the Tyranids turn up to try to spoil the party.

Mission Two : The Good Stuff
...

Campaign: Dark Intentions (Dark Angels vs Tyranids)

Tyranids have infested another planet.
On this planet there are three cities that contain 'persons of interest' to the Dark Angels.
The Dark Angels have to locate and extract their knowledge while holding off the Tyranid advances.

5,000 points to split between the three cities to defend / attack
(ie three battles of about 1,666 points)

Defense of City One:
The Door / Digestion Pool
(Emperor's Will, Hammer and Anvil)

Defense of City Two:
To The Death
(Modified Kill Points, Dawn of War)

Defense of City Three:
Out of time /  On the offensive
(Deadlock, Vanguard Strike)
Objectives are Digesion pools.

Campaign: Invasion (Eldar vs Tyranids)

The Tyranids have made planet fall on a moon orbiting an Eldar Maiden world.
The invasion has just started.

Mission One:
The Beginning : No Monstrous creatures, No Wraith units
Webway Surprise: Eldar must start in reserve.
Starting on the first turn they roll to enter via an Objective (Webway Portals).
Each unit can choose to enter from any portal but can not assault in their first turn.
1,000 points
Random Mission : 1-3 Eternal War / 4-6 Maelstrom of War

Mission Two:

...

Let me know if these are what you are thinking of 

I will separate into their own posts for running the campaign.

Also you will need to add your own

Eg A Dark Angels Mission for Hunting the Fallen (Raven Guard Only) etc.

These campaigns are best run over three battles.