Augmentations - Missing Implementations?

My adventure in to UnrealScript in Deus Ex hasn't been without its problems. I was learning how the Augmentation system works (DeusEx.Augmentation) by typing it out as I read it, trying to form connections with the code I was typing and how it makes sense. I have finished that part, and wanted to see how separate augmentations override states to implement their functionality (Cloak came to mind). I check AugCloak, which extends from Augmentation, while it overrides the state to check if any weapons are held and to play the cloaking sound, I saw no implementation of the cloaking effect. This confused me, so I checked Microfiberal Muscle (DeusEx.AugMuscle), but this one overrides the state code but has no functionality at all.
This is not all of the augmentations I have looked at (Speed shows its implementation), but I still wonder why I cannot see the implementation of the ones mentioned. Is this somehow implemented in native code, or can I find these implementations in another file? I'm considering the possibility of creating custom augmentations, however if this is implemented in native code, I may have to reconsider my options.
This is not all of the augmentations I have looked at (Speed shows its implementation), but I still wonder why I cannot see the implementation of the ones mentioned. Is this somehow implemented in native code, or can I find these implementations in another file? I'm considering the possibility of creating custom augmentations, however if this is implemented in native code, I may have to reconsider my options.