Armies reinforce during battles

[swellwrench]

Integrity​

I have verified my game files (on Steam)​

Yes

I have disabled all mods​

Yes

Required​

Summary​

Armies reinforce during battles

Description​

Because of this, the soldier End of Battle + Dead + Wounded + Demoralized counts consistently add up to more than the soldier Start of Battle count. It seems to happen in every single battle to some degree, even during the retreat phase. I attached screenshots of two extreme examples. In one, an Austrian army had 72.4% more casualties / demoralized than its entire initial army size. In another, a New Grenadine army had 78.4% more.

I also attached a third screenshot where I tried the same tactic on 1.8.7 and 1.9.6 and compared results. I started as Russia, declared war day 1 on Norway to Liberate Jan Mayen, then sent the stack of 45 troops to the front and did nothing else. I compared the numbers from the first three battles. On 1.8.7, the troop counts were pretty close, with gains of 0.5%-4.9% over the course of the battle. But on 1.9.6, the gains were much higher: 6.3% at the lowest to a whopping 20.9%, with the defending army in double digits each time.

I believe this is having severe effects on battle calculations. Defending armies that are being defeated often get a major "boost" from this that lets them turn the tide of a lost battle. I think this is at least partly responsible for the weirdly defender-friendly battle results people have reported in 1.9.x, e.g. here, here, here, and here.

Steps to reproduce​

It can often be visually seen happening in the remaining troops counts during battles, or you can add up the End of Battle + Dead + Wounded + Demoralized counts at the end like I did.

Game Version​

1.9.6 (also tested on 1.9.5 and 1.9.0 - it's present on both, but not 1.8.7)

OS​

Windows

Additional​

Bug Type​

Other

Save Game​

Attachments​

Player Pain​

8