Can't mod the game

[WarcrimeEnjoyer]

All of my gamefiles in /objectbundle have the suffix ".mainasset" rather than ".unity3d" Also for some reason i don't think i can install the shaders. Any help is appreciated.

[Yoinkyz]

look up nexus mods. there is a mod luancher called patchwork launcher. doudty you can mod it with just unity but there are mods

[valky]

Hmm, there used to be a tool, where you could manipulate the game assets directly, but haven't used it in ages. It has to be a proper supported unity-version to make it work, as it repacks the assets after changing them. It's binary anyway, so it usually did work as intended, but had to redo the change on major updates.
(tool was called "asset bundle extractor")

I used it to change firearms (range + reload) and was working fine.....but it's a lot of trial & error, to find the proper asset and change the value you are looking for.
Since you mod the original files, there is no mod launcher needed...

The 'free' version of unity thingie didn't support the game back then, so I just used other tools .... it's easier to change in unity but requires certain changes to support the game, if memory serves right.

And if all fails, there is always google.... *sigh*