more zombies in both campaings!can we do this?

After a bit of testing, I was only able to get this one zombie that is normally dead slumped up against the wall to be standing up and aimlessly walking into the wall towards a flower pot that blocked him, his legs clipping through the bench. He didn't try to attack me and he didn't even have his arms raised up at me. He must have no AI or something.
EDIT: it turns out his AI was just having him meander over to the room where the zombie that I copied + pasted the hex was located. I guess he has to go back to that room first, then maybe he would aggro (but he cannot pass through the doorframe).


These files seem very hard to modify. Most of the time when I tried changing anything, the game just crashed on loading the area. Either that or the zombies would become invisible but still shootable (sometimes just the ones I messed with), or all the zombies and lickers would disappear outright from the area and would not spawn (this happened when I tried to make the fat dead zombie like the three that normally are scripted to wake up together). All this just from modifying the hex under one normally-dead zombie.
I got this result of him sorta waking up by finding a zombie that I knew wakes up when you shoot it (the female one against the wall by Dr Li's computer, outside the cold room), copying a bunch of lines from where the "z" starts in the below pic under her zombie name (a length of 23C characters), and pasting it over where that same "z" would start under the always-dead fat zombie by the vending machines (for him it was actually a Y not a z). This block of hex:


If I copied+pasted the hex above the "yyyy" from the freezing room zombie onto the fat dead zombie, the fat dead zombie would vanish from the game the fat dead zombie would spawn on the location of the cold room zombie. There must be coordinates in there or something, and maybe something to designate a room / territory for the zombie inside the pasted hex. 
It all seems quite complicated, I wouldn't even know where to begin with adding entirely new zombies or other enemies to the game. A lot of things seem to be set up very specifically and dependent on one another.
Each zombie seems to have an ID. I tried changing the ID for the fat zombie that I resurrected from ID003 to ID004 (just adding +1) and it turned him into a fat sewer zombie (still with no aggro AI):

Any headway/progress into this as of now two months later? Would like to mod more enemies into the game as well!

TLDR; I think enemies are pooled together, and are assigned unique IDs with attached AI by a controller when loaded into a scene. If that's true then, theoretically, you could make a new ID for a scene and create a new instance of a pooled asset.

Let me start by stating that I know next to nothing about creating mods and deep-diving in game files, though I have dabbled in it very slightly and am in the process of learning game development. I may end up talking in circles as well, since my mind travels faster than my mouth (or hands in this case). Me no good with words for human contact.

Please correct me if I'm wrong, but I believe that most, if not all enemies in Re2R are handled solely through controllers used for identification, spawning, commands, and AI, meaning you cannot replicate them easily or place them on a scene in large quantities without throwing fatal errors. It's only a guess, but I think the enemy models are pooled within the engine, then are called out and assigned a specific ID relative to the scene they're placed in during the loading period, so their AI should always remains the same due to their ID. For clarification, when I say they are pooled, I mean the models and prefabs are set inside a container, then when they are called out, the engine creates a copy of them, thus essentially making a new instance of the original prefab. This means that a model can be copied, reused, and modified indefinitely without damaging the original asset, much like copying a file on your desktop.

Now, if it is discovered to be true - enemies being pooled into engine - and enemy assets are only copied from a pool and given IDs for a scene, you should technically be able to generate a new unique identification number within a scene, which is then given to a replicated zombie asset by the spawn controller, assigned coordinates, and then AI for commands and actions.

So, on reading through a bit more, I'm seeing a pattern in the initial hex data. Enemy Set Collider > Enemy Spawn Controller > Enemy Context Controller. I assume the Collider simply generates the collision meshes for prefab instances copied from the pool, the spawner literally places them on the scene in specific locations with assigned IDs, and the context controller gives those IDs their AI functionality.

That, or there is no pool and every single enemy in the game is simply a pre-made, named asset, which I personally think would be too time consuming and generally poor practice for a company such as Capcom, seeing as how they must have used pools for previous titles like Re5, specifically the indefinite spawns in the first map when you are attacked by a horde.

I don't know if any of this is true, as I am mostly basing this comment on pure speculation over something I have little to no knowledge of in any way, shape, or form, talking out of my ass in a somewhat pathetic attempt at sounding intelligent. If this was helpful, great. Otherwise, I'm terribly sorry for wasting the time it took for you to read through my bullshit.

I guess the highlighted code is the type of enemy, but when I tried to modify it, the enemy just disappeared. This is the file of first zombie in the gas station.

this is the big boy we need, its called "RE ENGINE Studio" someone needs to contact anyone over there at capcom to share it.
Besides, the files mentioned by alphaz are probably binaries compiled from C# code if anything they could probably be decompiled.