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So this technique came up when I was thinking about Soul Blaze in my GK army.

Say we have a squad of 9 Space Marines, 1 of them a sargeant, 1 with missile launcher, 1 with plasma gun and an attached librarian in PA.

The unit gets hit with an Incinerator and 2 marines die.

How do you work out random allocation for the remaining 8 guys?

They are too numerous for 1D6.

So are you gonna take 2D6 and say "it's this guy if we roll a 2, this guy if we roll a 3" etc. until "this guy if we roll a 9, and if we roll a 10, 11 or 12, it's a re-roll"?

This is covered by the 'Randomising' rules in the 'General Principles' section of the rulebook.

 Ghaz wrote:
This is covered by the 'Randomising' rules in the 'General Principles' section of the rulebook.

page? I cant find it in the index and page 35 (random allocation) doesnt clear things up.

 Sir Arun wrote:
So this technique came up when I was thinking about Soul Blaze in my GK army.

Say we have a squad of 9 Space Marines, 1 of them a sargeant, 1 with missile launcher, 1 with plasma gun and an attached librarian in PA.

The unit gets hit with an Incinerator and 2 marines die.

How do you work out random allocation for the remaining 8 guys?

They are too numerous for 1D6.

So are you gonna take 2D6 and say "it's this guy if we roll a 2, this guy if we roll a 3" etc. until "this guy if we roll a 9, and if we roll a 10, 11 or 12, it's a re-roll"?

Just don't allocate one of your special guys as number 7

Seriously though, 2D6 doesn't work well as the probability of getting each of the totals of the two dice is not the same. If you have more than 6 models you have to keep splitting them into two equal groups or something and randomise between them until you can roll on 1D6 to get a final result. Like Ghaz said there are guidelines in the rulebook.

There is also the option of using more then just six-sided dice.
The good old ten, twelve or twenty-sided dice often works well to keep the probabilities fair.

Carry a D20 around.

>10 models assign everyone a number and re-roll if no ones number comes up.

</=10 models assign them two numbers each

As above the 2D6 method isn't fair

I have a D4, a D 8, a D10, and a D20 in my gaming bag.

For situations where it really matters(and I even bother to randomize) then it makes things much easier

 Sir Arun wrote:

 Ghaz wrote:
This is covered by the 'Randomising' rules in the 'General Principles' section of the rulebook.

page? I cant find it in the index and page 35 (random allocation) doesnt clear things up.

Digital editions don't have page numbers that match print editions. It's with the rules for Dice on the same page as Re-Roll and Roll-Off, right before rules for Blast Markers and Templates

Easiest way would probably be to just get a D12 or D20 for situations like this.

One other solution is to roll a D66 as defined in the rulebook, or you could modify that process to make it a D33 (for 9 possible combinations with equal chance) or a D36 (for 18).

 Tonberry7 wrote:
Seriously though, 2D6 doesn't work well as the probability of getting each of the totals of the two dice is not the same. If you have more than 6 models you have to keep splitting them into two equal groups or something and randomise between them until you can roll on 1D6 to get a final result. Like Ghaz said there are guidelines in the rulebook.

I'm not the brightest lightbulb when it comes to math, so could someone tell me why the probabilities on 2D6 arent equally high?

From what I remember, these rolls are possible:

1,1
1,2
1,3
1,4
1,5
1,6

2,2
2,3
2,4
2,5
2,6

3,3
3,4
3,5
3,6

4,4
4,5
4,6

5,5
5,6

6,6

 Sir Arun wrote:

 Tonberry7 wrote:
Seriously though, 2D6 doesn't work well as the probability of getting each of the totals of the two dice is not the same. If you have more than 6 models you have to keep splitting them into two equal groups or something and randomise between them until you can roll on 1D6 to get a final result. Like Ghaz said there are guidelines in the rulebook.

I'm not the brightest lightbulb when it comes to math, so could someone tell me why the probabilities on 2D6 arent equally high?

From what I remember, these rolls are possible:

Spoiler:

1,1
1,2
1,3
1,4
1,5
1,6

2,2
2,3
2,4
2,5
2,6

3,3
3,4
3,5
3,6

4,4
4,5
4,6

5,5
5,6

6,6

Partially incorrect. You can roll 1,2 or 2,1. Both add up to the same number. You can also roll 3,4 4,3 2,5 5,2 1,6 6,1 all adding up to 7. That's 6 chances for a 7 and 2 chances for a 3. The odds are not the same.

Ah, makes sense thanks

And while we are on the subject, the unit suffers 3 wounds.
He randomizes allocation and the first wound is allocated to a plasma gun .
Plasma gun successfully saves the first wound.
Does the next wound automatically go to the plasma gun again till he fails (or saves them all) ? or do you randomize for each wound?

Once you start allocating to a model, you have to keep allocating till it dies, or the wound pool empties

for normal allocation that is correct nos.

I dont know if random still follows that. Although, it does save time.

It does:
...that model is treated as being the closest model to the attack and remains so until either the attack ends or the model is slain.
Random Allocation

Chiming in on the additional dice. Having a d4, d8, d10, d12, and a d20 makes that stuff so much faster & easier. Even just a d10 and a d20 would be good.

We normally don't worry about it, and just remove regular models. Though I've been thinking that maybe whenever we need to do random allocation we should 2d6, and on a double 1 we have to allocate to a special/heavy/character model (your choice) first.

I normally dont care, but there are several instances where it can matter such as a flier being downed and there being some special guys in there.

Or a vector strike hitting the right guys, etc.

It matters in a few situations, however there are only a few where it is worth the hassle.