How is final fire computed?

[Theokrat (OP)]

I am running against a continuous bombardment of salvos of 48 missiles, set apart by 10s and my fleet includes, among others, 3 of the ships posted below.
All gaussguns are assigned to a different firecontroll, and all firecontrolls are set to final fire at 10k km.

Generally things work as expected most of the time, i.e. the FCs engage incoming missiles more or less successfully, taking turns  until the incoming salvo is depleted.

Well not quite. Two ships do just as expected, but the third just sits there and does nothing although it has the same exact settings (copied over actually). And sometimes a few missiles manage to get through the fire put up by the first ships, then smashing into my ships. So why does the third one not engage these missiles? Is there a cap of 8 final-fire shots, or something?
 

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C - Rüstung III (1994) class Corvette    7,250 tons     513 Crew     2908.8 BP      TCS 145  TH 1456  EM 0
10041 km/s     Armour 6-33     Shields 0-0     Sensors 1/1/0/0     Damage Control Rating 3     PPV 69.48
Maint Life 2.29 Years     MSP 752    AFR 140%    IFR 1.9%    1YR 194    5YR 2913    Max Repair 288 MSP

Eng Mil IV - 1994 Boosted ICF E4.8 (7)    Power 208    Fuel Use 48%    Signature 208    Armour 0    Exp 25%
Fuel Capacity 300,000 Litres    Range 155.2 billion km   (178 days at full power)

Triple Gauss Cannon 5-R2-67 (1991) Turret (3x15)    Range 20,000km     TS: 32000 km/s     Power 0-0     RM 2    ROF 5        1 1 0 0 0 0 0 0 0 0
Triple Gauss Cannon II 5-R2-67 (1995) (1x15)    Range 20,000km     TS: 32000 km/s     Power 0-0     RM 2    ROF 5        1 1 0 0 0 0 0 0 0 0
BFC PD III 32kkm/s-120km (4)    Max Range: 120,000 km   TS: 32000 km/s     92 83 75 67 58 50 42 33 25 17

AMM Scanner III (1979) 2.1mkm (1)     GPS 108     Range 19.4m km    Resolution 1

This design is classed as a Military Vessel for maintenance purposes(the different Gaussguns turrets just result from a refit. The last one uses a better tracking tech and is thus smaller and was added during a refit, while it would have been to expensive to replace the older ones)

[TheDeadlyShoe]

How many salvos are coming in? I believe the computer will only auto-allocate so many guns (BFCs?) per salvo.

[Theokrat (OP)]

How many salvos are coming in? I believe the computer will only auto-allocate so many guns (BFCs?) per salvo.

Only a single salvo of 48 missiles hits every ten seconds. There is a pretty much infinite stream of salvos, coming one after another.

I have played around a bit with the assignments to firecontrolls, not to much avail.

When a ship engages the salvo it generally manages to shoot down around 20-30 missiles. So usually, when two ships engage that is sufficient.

But sometimes its not and the third one does not always engage (by now I have seen it engage sometimes). Sometimes even the second one does not fire, so only one ship engages and I get hit by ~20 missiles.

So as far as I can tell there is a random element so that with a chance of around 1/5th or so a ship will not fire in final fire, is that correct?

[Zook]

Just a wild guess - take one turret type off the FC and see if it still happens.

[Theokrat (OP)]

Just a wild guess - take one turret type off the FC and see if it still happens.

Well initially I had coupled each turret to its own FC, so 1turret-1FC. In this case either all four FCs on a particular ship would engage, or none would.

I tried different combinations, such as 2turrets-1FC and 4turrets-1FC. There is no difference in the aspect that sometimes one or two of my ships would not join in.

[sloanjh]

So as far as I can tell there is a random element so that with a chance of around 1/5th or so a ship will not fire in final fire, is that correct?

If this is the case, it is not intentional   I suspect either an interface or implementation bug: by "interface bug" I mean that there are a lot of parameters in setting up fire control, and so there are a lot of cases of user error where something subtle has or has not been set which breaks the final fire.  The weird part is if all 3 are (you think) being treated similarly - if they really are then it's probably an implementation bug.

John

[Theokrat (OP)]

If this is the case, it is not intentional   I suspect either an interface or implementation bug: by "interface bug" I mean that there are a lot of parameters in setting up fire control, and so there are a lot of cases of user error where something subtle has or has not been set which breaks the final fire.  The weird part is if all 3 are (you think) being treated similarly - if they really are then it's probably an implementation bug.

John

I think I can say that its not an input error. All ships show the same exact settings on both the combat overview and on the individual ship pages. Their setup is identical, its the same class all have 100% TF training and they are in the same fleet.

More importantly however, it seems random which ships fire and which dont. I have seen every single one of them firing, in some instances all of them at the same salvo. And I have seen every single one of them failing to engage even if they should have. So I heavily doubt that it is an input thing.

[Erik L]

Did you use the "copy" buttons or manually set up the FC?

[Theokrat (OP)]

Did you use the "copy" buttons or manually set up the FC?

Copy. When that did not seem to produce the desired result I tried other setups, some of which I only applied to a single ship, still same results.

I really dont think this is the issue. When a ship fired that was just as expected. Its just that sometimes it did fire and sometimes not, with the same exact settings.

[madmarcus]

Crew training effect?

[Charlie Beeler]

Crew training effect?

That's only a modifier to the firing solution.

[o_O]

Are the ships all in the same task force?

[Theokrat (OP)]

Are the ships all in the same task force?

Yes, same task force and even same task group.