Except, as I already mentioned :
1) Battlefield promotions don't seem to be lost to secondary split units (example : that Combat 1 above).
1b) And they aren't "free" any more once you merge units, looks like some code here tries to predict what a unit's level "should" be from the promotions alone that the unit has ?
2) It doesn't seem to matter what main unit you use for merging, you get the free promotion in the merged unit anyway (example : City Garrison 1 in my game, Lead by Warlord in his)
3) It's actually *normal* that his secondary split units lose Zen (also Heroic 1, and Leadership, and Morale) because they lose the free Lead by Warlord.
In fact the game even gives you a message :
"Having lost one of its prerequisite promotions, your <unit> has lost its <promotion> promotion and may now select a new promotion.
(And in the first screenshot Tactician and Overwhelm, because coming from the free Lead by Noble.)
4) *However*, Tramwajg seems to have hit the same or a similar bug as I did with levels not being properly counted ?
(Do you have Battlefield Promotions on ? That's a setting that seems to be Civ-with-BUG-wide, rather than kept in the save... (which IMHO shouldn't happen ! How can you even debug other player's games in these conditions ?!))
It's harder to say what happens in his first screenshot, but in the 2nd case (his save) :
Before splitting :
lvl 18, 344.28/342 XP
1 promotion left to add
17 promotions on unit (including 1 Buildup and 1 Standout status).
18 promotions total
After split :
lvl 18, 344.28/342 XP for all 3 units
0 promotion left to add for all 3 units !
(I don't think that units *should* have lost their ability to get promotions on that turn because of a split ?)
17 promotions on main unit (including 1 Group Down and 1 Standout status) - Does it make sense to lose Buildup (Fortifications) V ?
11 promotions on secondary units (including 1 Group Down and 1 Standout status) - Lost the free Lead by Warlord and the 4 promotions that came from it, lost the free Poison Tips, but *kept* the free Status (Standout), Way of the Warrior, Negligent II ! Total 4 non-free promotions lost.
Next turn :
1 promotion left to add on main unit
5 promotions left to add on secondary units (1+4 = 5, check !)
(But shouldn't the secondary units have lost levels ??)
Ok, now the merging back again :
lvl 16, 344.24/270 XP
12 promotions
3 promotions left to add
That's a problem, we somehow lost (1+4)-3 = 2 promotions left to add !
My guess would be that this comes from the Battlefield Promotions bug that I've discussed before, and that this unit got 2 Battlefield Promotions some time in the past ?
Also, contrary to what Thunderbrd says, I can't seem to find a way to make the merged unit to lose its free promotions that the secondary units lost when splitting (Lead by Warlord and Poison Tips) by picking a different main unit to start merging.
So, to recapitulate the issues :
A) Some of the promotions left to add seem to be lost (because of interaction with Battlefield Promotions ?)
B) Units when split for this turn lose their ability to get promotions left to add.
And maybe :
"C") Split units aren't losing levels when losing forbidden promotions, even though for some reason this doesn't affect the promotions left to add.
"D") The game doesn't display anywhere how many promotions left to add a unit has.
and/or
"E") The game doesn't display anywhere what will be the new level of the unit once all promotions left to add would be taken.
And maaaybe also :
""F"") Some of the free promotions aren't lost to secondary split units : Status (Standout), Way of the Warrior, Negligent II
""G"") Main split unit loses a promotion : Status(Buildup (Fortifications) V)
Now, for those, I guess that there are 4 things happening here :
α) Status (Standout) seems to be "special"... because all new units automatically get it ? Maybe this shouldn't be automatic for split/merged units ?
β) In further testing, all the other Statuses seem to be lost to secondary units when splitting (and regained on merging), because they're free promotions. Maybe Statuses should NOT be lost to secondary units ?
γ) Status(Buildups) seem to be lost even to the main split unit ! Looks like that this is to replicate the behaviour of Fortify being lost to all the split units ? But maybe it's the Fortify bonus that should, if possible, be kept to all the split units instead ?
δ) Way of the Warrior, Negligent II don't seem to be treated as regular free promotions because they're given by Civilization or Leader Traits ?
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This is kind of unrelated, but maybe they should be made more "immediate", just like for promotion requirements ?
AFAIK :
- Negligent doesn't seem (?) to be *immediately* given to all your units that qualify when you get the Leader Trait, nor *immediately* removed (?) when you lose it ? Maybe Leader Traits should ?
- Ditto for Ancient Way of the X : Civilization, not Leader, Trait, that obsoletes with Classical Lifestyle, but your units don't lose those promotions then because they *derive* from the trait. Maybe they should lose them ?
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But back to the issue at hand : if Civ/Leader promotions behave differently, their promotion icon should have a different shape ?
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In fact the icons of free and non-free promotions should be somehow different too... maybe a different *border* ?
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Some consistency for promotion backgrounds would be great too : see how all (Hero) promotions are green ? Make all the Lead by Warlord promotions red ! (Including Heroic, which is NOT a (Hero) promotion !)
(I guess that you might not have the original files that were used to make those icons, making recoloring them a chore ?)
Finally, here's my own save illustrating some of this, see the Neanderthal Slinger 1 (Niani) on my capital :
I have one main unit which is triple-merged longbowman, I needed to transport it to other continent so I splitted it, loaded on fluyt, and merged again, but promotion "zen" (heal while moving and some more benefits) was not retained. I now have triple-merged unit with 50/300 experience which can't heal while moving, which is quite problematic as with units with so many hp and heal speed reductions, heal while moving is the only possibility of keeping unit with high hp bar (they loose hp every turn when near hostile town too), anyone knows why it worked that way? my state religion is buddhism (the one that matches to this promotion)
