A program for calculating the strength of the guard on random maps in Heroes of Might and Magic III, called H3CalcGuards.

1. Hmm, I thought that when there are fewer than 10, they don't grow. Thanks, I'll double-check this.

2. More than 100 cannot be the average number of monsters. So, 100-249 on week 1 is a maximum of 125 (but in reality, 125 is very unlikely, more like 100-105). Each week, the number of monsters grows by 10%, but so far, it's unclear what happens with rounding.

3. No. Their number is unlimited.

4. Yes. Here you can find information about the values, frequencies, and quantity limits of all objects: http://forum.df2.ru/index.php?showtopic=2342&st=420&p=559149&#entry559149

Specifically about Pandoras (each Pandora is counted separately with each specific creature or amount of experience):
Pandoras with experience have a relative frequency of 20.
Pandoras with gold have a frequency of 5.
Pandoras with magic have a frequency of 2.
Pandoras with creatures have a frequency of 3.

1 and 2. Specifically regarding Rust Monsters, there is information that their growth rate is indeed not 10%, otherwise, how did I have 8 of them on GO at 131? True, I don't have the save, but I remember exactly 6 stacks, and I don't remember if there were 2 in stack 1 or stack 2. Sabre Terra holds Demons, but maybe someone tweaked something, but GO is a standard 45K as requested.

Although with normal rounding, there would be 7 of them, and if at the maximum, 5.5=6, 6.6=7. But I wrote the report immediately after the game, and it says 8 there.

3 and 4. That's where I got a little confused. Approximately, the probability of a Pandora appearing, assuming they are all present on the map, is in these proportions:
Troops 42 (14 units of 3)\Experience 80\Gold 20\Magic level 10\School magic 10
That is, in percentage terms, it would be 25\50\13\6\6?

Added after 36 minutes
And the secret was simple. Units do have a fractional number after growth. It's just that the number of units is a whole number without rounding. But still, it doesn't quite match up with 7-8 Rust Monsters at 131...