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HwT

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This bug/feature came up in Quick questions / Quick answers thread.

The game doesn't apply attrition to AI correctly when there are armies from more than one nation in a single province. It seems to calculate unit weight only from the topmost stack in that province and apply that same attrition for all armies in that province.

For example: France and it's vassals have 27k troops in a province with supply limit of 12. All armies there should suffer 5% attrition, but they don't. This happens because the unit weights are calculated incorrectly for the AI.

I'm not entirely sure if the attrition for all the armies in a province is calculated by just the unit weight of the the topmost stack in that province (5.2) or maybe each stack is calculated individually (for example, France has 13k units of those 27k there and perhaps it's the unit weight of just their own 13k which is taken into account when their attrition is calculated). Either way, this is unfair benefit for the AI.

(If it isn't clear, attrition info from that 27k stack in Normandie is shown in both pictures.)

image.png


If the player is in control in that same exact situation, attrition is correctly 5%. Confirmed this with tag switching to France just before tick of the month.

player.png



Also the UI doesn't just show the numbers wrong. After the tick of the month, AI armies have more men than the player would have in that same situation.
 
Last edited:

Mztr44

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That would explain why i've seen HRE alliance doomstacks skipping around Germany without shrinking. I kind of thought something was up. I thought i've seen them shrink really fast if they are out of manpower in the past though, so I wonder if something changed in the last patch or two.
 

ChildeR

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Your screenshots compare different units' attrition. My guess is that player and AI take attrition similarly, and the change/bug is that every nation gets their own 15.1 supply.

I.e. probably a bug, but not AI specific.
 

ciadude2

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It does kinda make sense in the sense that different countries might have different supply lines.
 

slv

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It doesn't.
 

HwT

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Your screenshots compare different units' attrition. My guess is that player and AI take attrition similarly, and the change/bug is that every nation gets their own 15.1 supply.

I.e. probably a bug, but not AI specific.

It does kinda make sense in the sense that different countries might have different supply lines.
I'm not sure I understood what you guys said correctly, but player and the AI don't take attrition similarly:

I saved at the end of the month (first playing as England) and compared troop strengths of France and it's allies to what they had both before and after the tick of month's change.
Then I reloaded and tag switched to playing as France, and noticed that I always had fewer men than the AI would have with the exact same conditions.

=> AI takes less attrition damage when there are forces from more than one nation in a single province.

I believe that for each of nations that have forces there, their attrition is calculated individually without regard for what is the total number of troops in that province. That is something that isn't done for the player.

Example:
AI-France has 19k and it's vassals have 8k troops in a province. Attrition is calculated for AI-France based comparison between unit weight of 19k and the supply limit.

Player-France has 19k and player's vassals have 8k troops in a province. Attrition is calculated for Player-France based comparison between unit weight of 27k and the supply limit.
 
Last edited:

Strangedane

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Been messing around with this some hours now.

Play Granada
Hire a merc unit.
Get MA.
Park on top of AI stacks.
Hilarity ensues.
Support Frances indepence.
Easy(ish) re-reconquesta.
 

ChildeR

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Example:
AI-France has 19k and it's vassals have 8k troops in a province. Attrition is calculated for AI-France based comparison between unit weight of 19k and the supply limit.

Player-France has 19k and player's vassals have 8k troops in a province. Attrition is calculated for Player-France based comparison between unit weight of 27k and the supply limit.

Ok, that's interesting, it wasn't visible in your screenshots. Does the attrition damage also pan out like that when the month changes?