Is the source code accessible? I understand Interplay still holds copyrights to it - is there someone in particular I should talk to?

Do you have any recollection of the algorithm used for distributing resources on the world maps? I have been able to strip some information out of maxrun.exe, but don't know what it means:

raw_normal_low
0
raw_normal_high
5
raw_concentrate_low
13
raw_concentrate_high
16
raw_concentrate_seperation
23
raw_concentrate_diffusion
6
fuel_normal_low
2
fuel_normal_high
3
fuel_concentrate_low
12
fuel_concentrate_high
16
fuel_concentrate_seperation
24
fuel_concentrate_diffusion
5
gold_normal_low
0
gold_normal_high
0
gold_concentrate_low
10
gold_concentrate_high
16
gold_concentrate_seperation
32
gold_concentrate_diffusion
5
mixed_resource_seperation
40
min_resources
9
max_resources
20

Related to that, do you recall the algorithm for determining infiltrator success at disabling / capturing for units (which appeared to be modified depending on the unit / building type and whether you were capturing disabled/undisabled units) and experience gains? I know from the executable the standard infiltrator starts with 50% chance of success - at what, though, it doesn't say - and goes up 10% per successful attempt at something...

And, how did the alien unit experience work? For some number of kills, pick one random stat and increase it by a percentage? Or was the trigger something other than kills?

Is there any accessible documentation on the file formats involved, such as the world maps (.WRL), and the resource packs (.RES), as well as the demo file (.DMO)?

I doubt anyone knows where the source is now. Interplay of course owns the rights, but I suspect they haven't made an effort to preserve it.

I only vaguely recall the resource placement. I think you can ignore the "normal" numbers. Originally the entire map was going to have low levels of resources, and that's what the "normal" values refer to. The concentrate numbers are all that remain. The "low-high" values are a simple random range. Seperation is the rough distance, in squares, between deposits. Diffusion is a measure of how many squares a deposit occupies.

I don't recall how infiltrator experience worked.

Alien experience was based on kills, I believe. And no, it wasn't random. Rather, it used a mechanism similar to the unit upgrades. That's as much as I recall.

We had pretty much no documentation for file formats, ever. Like many projects, we simply added code to read / write sections of the file as we went. Since no other application needed to know how to write those file formats, there was no formal doc.

You are really eager to make your own 1to1 MAX Clone aren´t you?