how do i make the timesplitters mega pack work?

so in gmod 12 there was this mod:
it was really fun and im pretty sure it will work in gmod 13.
so i renamed the “info.txt” to “addon.txt” and it did not seem to work. so i put the models and materials folders from the winrar zip and i overwrite the models and materials folders in the garrysmod folder. so now i get the models, but no snpcs! there is a folder in the winrar zip called “LUA” but that folder is not in my garrysmod folder. so do i put the LUA folder in the garrysmod folder? please help

just give up, gmod 13 probably broke it. you’re going to have to wait for a compatible version.