[kadet.89]

This version doesn't work.
If somebody decides to update it, it is possible to get rid of sigscaning. For entity factory a virtual offset can be used from default sourcemod gamedata (the one, which is used for receiving sendprop tables). Emiting sounds and playing animations can also be implemented with using only functionality and virtual offsets provided by sourcemod/metamod.
I ported this extension to CS:GO about a year or two ago. It didn't really require any changes in the code except for redesigning of the entity factory and replacing custom hooks with the ones provided by sourcemod. As I was told the extension still works after dosens of engine updates.
Can't share the updated code as don't have it anymore.