Thanks for the explanations.
I think a dogpile is realistic if implemented correctly. I often heard statements that for a successful breakthrough of the attacker the ratio should be at least 3:1 for the attacker. It seems to be general consensus. This ratio applies probably to opponents that are equally strong, without surprise attacks or other circumstances that would change the ratio, only straight attack.
And what happens if the ratio is fulfilled and the attack is successful? On some point the attackers will break through and roll up the defense line. The casualties of the defenders will mount and they have to retreat. Wouldn't the dogpile effect appropriately feature this?
Anyway, the battle system seems unrealistic. A had a game for the Commodore 64, 'D.A.K.' (Deutsches Afrika-Korps), which had a better battle system in my opinion. I always assumed the GD values would increase the strength of the defender, delay attacks, cause more casualties to the attacker, decrease the casualties of the defender.
Now I read in another post some time ago that in a battle the sides change all the time. So the defender will attacker and his attack value gets applied, while the attacker defends and his GD gets applied. Does nobody else take this as nonsense? It makes both equal. The attacker will get a bonus for his mines to stall the defender attack, though he is the one who attacks. I have given GD for mines to tank units, including a small SA for the casualties that mines inflict. But that means that tanks will attack with mines, and they use mines to reject the attacks of the defenders. This makes attackers and defenders equall, not taking into account anymore who actually is the attacker and who is the defender. And you can't apply techs to the attacker or defender. The attackers will always use mines to attack, even if you don't give them an SA bonus as I did. The change of roles will make the GD bonus of the mines be taken into account.
Also there is this stupid differentiation between HA and SA. Mechs and armor divisions as hard targets have infantry which are soft. Therefore mines, rifles and all other weapons with SA will in HOI not inflict casualties to them, while in reality they would. And mines and AT-mines would be treated the same in GD. Some people complained that the 'hard' units don't get enough damage. Now this is probably the reason, that their infantry does not get heard by SA, though the infantry brigade is about half of the unit.
And now I have additionally recognised that the GD does not work in the way i thought. Consider this: An attacker attacks the defender and the GD of the defender is high enough to match all SA of the attacker. The defender gets new techs: MGs, mines, rifles, mortars, body armors, basic versions, improved, advanced, etc. Will this improve his defense? In reality? I am sure. In HOI? I am sure that not.
My conclusion is that almost all infantry weapons have to get SA and even HA, the GD has to be tripled, and the GDE has to be taken into account. The problem with the GDE is that it can't be applied for specific unit types and instead raises the defense of all types. But I think that would not be as wrong as leaving it completely out.
This should also be applied to artillery and land doctrines. But the standard GDE starts very high, so there is only a small range of 19% from 80% standard to 99% maximum. It sounds logical to me that techs, weapons, doctrines, artillery can increase the defense ability and lower the casualties. That means the GDE should rise. If the attacker stays on the same tech level, he will have more difficulties with a higher teched defender.
Some people said that the old GDE bug was good for modders. That is only half true. You could of course use it to lower the enemy GDE, which is logical for attacker techs, like Mine Clearing Equippment. But the command to change the defender GDE was missing. Now it's just the other way around.
With the tech research the SA and HA will also increase. So with equally high teched opponents the GD and GDE of both are higer, so less hits will get through. But their SA and HA are also higher, so they will inflict more damage, if they get through. I think it is not exactly appropriate, but the overall casualties might remain rather equal.
But a problem is the small range of GDE. I think it is realistic that many techs contribute to it. But with this small range they get only a small part of it. I have now assigned 5% GD increase to the Infantry branch and distributed it over the weapons and other techs. But I had to tone them down heavily. The Divisional Signal Command Systems have only 0.5% now, Rifles 0.1%, Basic MG and Basic Mines 0.5%. I think it's too less. The same problem will occur with Artillery and Land techs.
To give them an appropriate value to permit a realistical GDE increase, the starting GDE has to be lowered, maybe to 50%, maybe to less, but I guess many people would complain about too high casualties. But the SA values would also be lower at a low tech level. What GDE value would be right at the start, without Basic Rifles, MGs, Mines? It was said in the tech text that these weapons increased the defense greatly, so I think it would be right, that the starting GDE is much lower. Most of the GDE will be contributed by these first infantry and artillery weapons and doctrines, that date back to WW1. In 1936 most of the techs are already researched by most of the countries. Further techs are just improvements and refinements of the basic techs, and would contribute less GDE. If the GDE starts with about 50% this could be increased by the basic techs to 70%, leaving about 25% for the rest.
The question is from which point the GDE should start and to which point it should increase. I think that 99% is too high. The increase at higher values might need some further consideration. The increase of the GDE seems linear, but the effects are probably not. An increase of the GDE from 50% to 59% has probably to be considered differently than an increase from 90% to 99%. At 90% 10 hits of 100 get through, at 99% 1 hit of 100 gets through, that's only 10% of the hits at 90%. This difference seems much higher than at lower GDE values. If I did not mistake something, the hits that get through at 59% GDE are 82% of the hits at GDE 50% That means a GDE of 1% of an Assault Rifle is not the same as a GDE of 1% of the Basic Rifle. Depending on which techs, even of other branches are researched first, the effects of the values will change. On higher levels the techs should provide lesser GDE, not only because the later techs are only improvements of existing basic techs that provide the most boost, but also because they will increase the GDE from higher values, thus causing bigger effects on the enemy, by decreasing the percentage of unmet hits significantly.
Maybe the different GDE values and their effects are not that much of a problem, as it actually seems to me. Anyway this still leaves the question where the GDE should start and to which value it should rise. Originially in HOI the Divisional Signal Command Systems raised the GDE from 80% to 95%, so 95% was meant to be the upper limit. Just it seems unappropriate that other techs should not contribute. For the lower limit, I think it should be taken into account, that CORE has added many weapons, that in my opinion really lacked, and should contribute greatly in GD and GDE, but they were not previously in the game and thus the GDE of 80% should at least be considered to include the GDE of these basic techs already. So by including these techs with GDE increases, the starting GDE should also appropriately be lowered.
So far most techs were distributed to only a few unit types. I think this is wrong. It should be considered which units these techs would serve in reality, and to which units these techs would be distributed inreality. For example militia, cavalry, mots, mechs, armor have often been excluded from infantry weapons. But militia, cavalry, mots, mechs, paras, marines, mountaineers are all infantry, just special types. Even armor units consist of an armor and an infantry brigade, which should get half the benefit. If for example a new type of rifles are developed, than why should elite units be excluded? They would more likely be the first to get it. So I have excluded only sometimes a unit type from the benefit of a weapon. I excluded Militia from subMGs and AT launchers, but Improved Assault Rifles, after becoming the standard infantry weapons would also be distributed to them. That may take a while in reality, as elder models in reality don't get immediately scrapped as in HOI.
Most people seem to have more concepts about unit types that seem strange to me. But I might bring this up in detail at another time. Here I want only to state the most strange concepts:
Cavalry: Most people seem to expect cavalry to be a horde of idiots, that can handle only a few weapons. This causes that cavalry is rather useless in HOI. As I understood it, cavalry is infantry, equipped with horses. I give them all weapons that the infantry gets, they are just faster and need more supplies, and they don't suffer as much terrain penalties as motorised units.
Mountaineers: They seem to be treated as elite units. Once somebody told me, that the rangers (ger: Rangers) get the hardest training in the army. I asked him what a ranger is. He said this unit type is from America, they get handfight training learn to eat worms and other such things to survive in the wilderness. Now, wilderness is hardly imaginable in the middle of Europe. And I never heard that fight without firearms has ever been trained in the german or austrian army during the last centuries. I am sure that our mountaineers are completely different than american rangers. They derive from game hunters in the mountains. They were euipped with firearms, already in peace times, so if there was a conflict, they were the first one to be called upon. There main purpose was to use their guns in mountainious terrain. So in first place they are militia; if better trained they can become light infantry, with additional mountain warfare euippment; but in no way I could see how they are an elite unit, like paras and marines.
But mots, mechs and armor are. They get all techs that normal infantry gets.
Now I hope some people get interest in this GD and GDE matter and find some historical and realistical stats.