Editing Nobledark Imperium Writing (section)

== Episode I ==

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++Excerpt from a lecture series given by Sky Marshal Nigel Iger at Bakka Naval Officers' Academy, 867.M41++<br>
++"How to kill an Attack Moon"++

Now, the most important thing to have when assaulting an Attack Moon- the thing you must have above all else- is sufficient numbers.
Yes, that sounds obvious, here in this room at the Naval Academy. Nearly tautological. But out there in the void, things will seem different. You will see merchant convoys shattered, planets burning, billions dying. You will be tempted to follow the examples of Ollanius Pius or the Astral Knights, to cry 'damn the torpedoes' and hope that determination and hate will fill in for your lack of guns and steel.
DO. NOT. DO. THIS.
Because I tell you now, it will not. The best possible scenario is simply that you will get tens of thousands of the Emperor's voidsmen killed to no purpose. At worst, it will take that much longer to assemble sufficient weight of metal to take it down- and planets will die in that time.
We are the Imperial Navy. We are the first and greatest line of defense. And billions die for our mistakes. So, if you do not have sufficient numbers to win- do not engage. Even if that means leaving worlds to burn.

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So what does constitute numbers, then? It varies, of course, but the general rule of thumb is at least one-third of the Attack Moon's mass. I've done it with one-quarter, but I've been doing this longer than any of you have been alive.
This may seem low, which brings me to another rule of thumb: firepower is, loosely, a function of surface area, while durability is loosely a function of volume. You're limited in firepower by how many guns you can physically mount on a ship, while durability is limited by the mass you have to absorb hits. And anyone who has even glanced at a naval engineering textbook knows that volume increases faster than surface area.

Therefore, an Attack Moon has less firepower for its mass than, say, a battleship or frigate does. Which is still an absolutely tremendous amount, but it means physically smaller forces can win without overwhelming tactical genius.
As for specific mix of forces, you will need a lot of nova cannons, a strong carrier force, a strong gunline, and preferably guided torpedoes, although those aren't entirely necessary.

So, how do you kill an Attack Moon? Well, I'm about to walk you through it. Keep in mind this is a 'white-room' exercise, which assumes the Attack Moon is without a meaningful escort fleet and there are no nearby celestial or planetary bodies to complicate things. How those change the picture I will cover in later lectures.

The first step is to prevent it from launching fighters, bombers, and torpedoes. This is where the nova cannons come in. The Power Fields of the average Attack Moon can withstand even direct nova cannon hits, so bringing them down isn't the point at the moment. The point is to use the area-of-effect to fry the bombers and torpedoes as they launch. You will want to use shells optimized for area effects for this. Set up a continuous barrage, each nova-cannon carrier firing in a steady sequence. You do not want to allow the Attack Moon to launch its entire strike-craft complement; the amount of fighters a carrier can carry is a function of volume, so if you let the Moon launch you will drown in bombers. The continuous explosions will also, hopefully, blind the ork gunners and sensors, making their fire even less accurate than it normally is.
While this is happening, your gun-line should bombard the Moon from long range. Attack Moons are very large, slow-moving targets, and at the moment the goal is not precision strikes but simply to batter the Power Fields down. You want the range to be as long as possible, to prevent the enemy from getting hits.

Now, DO NOT englobe the enemy. This will simply allow all of its guns to fire at you simultaneously. You want to focus your forces against a single hemisphere- preferably the aft, where the guns are usually least numerous.
Once the Power Fields are down, you can begin strikes against individual components. This is where your carriers and torpedo destroyers come in, using bombers and guided torpedoes to hit pinpoint targets. First priority is engines, to prevent it from rolling undamaged faces to meet you. Second is heavy weapons, to allow your battleships and grand cruisers to move in.
The nova cannon come in handy again here; while the armor is heavy enough to resist even direct hits, the flash and blast is excellent at suppressing and destroying the lighter point-defense turrets, making it more likely that your bombers will actually survive to deliver their payloads. You want to cut it as close as possible without accidentally destroying your own bombers. How close that is depends on how coordinated your gunners are; you should know that before engaging in battle. You'll want a simultaneous strike, with as many cannon as you can spare from continued fighter-suppression.
This will not render the Attack Moon helpless. However, it should suppress the defenses enough that you can move your gun-line in close enough for it to begin precision targeting with its broadsides as well.

From there, you simply continue to destroy surface gun emplacements and suppress fighter launches with the nova cannon. Continue until its guns on the targeted hemisphere are gone and the Attack Moon is immobile. Total destruction will still be difficult. You have basically two options- focus the fire of your entire fleet onto a single point, and drill into the Moon's core until you find something explosive, or land Astartes boarding, demolition, and sabotage teams to blow it apart from the inside."

And there you go- you have destroyed an Attack Moon, with only minimum losses if all has gone according to plan.

Of course, things rarely go according to plan. Many things have been omitted from this 'white-room' demonstration, from enemy escorts to the likely countermoves of the Attack Moon itself. Orks are nothing if not inventive, if rarely competent. So, one last thing I left out of my description- you'll also need a strong reserve, and to be ready for anything.

Thank you, and see you tomorrow, where I will begin discussion of how to deal with an Attack Moon's inevitable escorting fleets.

++Conclude excerpt++

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