MMH5.5 - Heroes of Might and Magic 5.5

Also I wanted to say to everyone here, in case I have not done it till now, that this mod is absolutely open source and everyone can use it or any part for a development their own mods or just for creativity

I am primarily interested in EXE changes, but I haven't had time to work on them. Is it possible to create an optional EXE build based only on selected aspects?
For example, the current build, which I use for my mod, includes 3 things:
1) An increased number of hero classes to 24 (this is what I use it for).
2) An increased number of IDs for neutral creatures (neutral).
3) Easier leveling after level 25 (completely unnecessary; I would like to remove it).

I would really like it if, in addition to points 1 and 2, one or more of the following were implemented:
1) The knockback after casting mass spells of light and darkness should be 0 instead of 0.5 on the ATB scale (it doesn't matter whether the spell still works).
2) Is it possible to do something with the attack animations of the additional classes? Currently, they all had to be changed to casting animations instead of using the default attacks for their models.
3) I heard that the new classes do not work correctly when determining their native terrain (default is grass). Is it possible to fix this, or at least remove the movement penalties for foreign terrain?
4) Is it possible to change the formula for random ability triggers to a direct linear formula, such as chance = HP / 4, or the ratio of the attacker's damage to the target's HP.
5) Is it possible to change the spell calculation formula for unit-casters so that, instead of dubious logarithms, it is a direct proportion of the number of weekly increases?

Once again, I would like to emphasize that for my mod, I would really like a clean build without extraneous elements, such as changing the spell mechanics, for example.

Regarding Berserk, I would like to note that this is an extremely powerful spell in a warrior-versus-warrior matchup (a huge effect, regardless of spellpower). However, it is not necessary to nerf it for skilled players; for example, you could simply set the damage modifier for Berserk to 50% (instead of a bonus, it would be a penalty).