Going to just dump my VPKs into my custom folder as rule of thumb now. Appreciate the help!

Yeah, Black Mesa seems to have always had problems with model replacements. So far I haven't noticed any problems with any other types of mods.

Can confirm manually installing fixes all issues. Not sure when Black Mesa began doing this but oh well :/

Can confirm that the houndeye, alien grunt, controller and a bunch of other mods not by yourself do not work through workshop. Going to throw all my Black Mesa VPKs into my custom folder and see how it fares.

Running by again, seems your houndeyes also don't work. Not sure what's going on but I'm going to see what does and doesn't work overall really quickly.

Hey there! I made an edit of your awesome L4D1 Charger, here it is if you want to check it out!
https://steamoss.com/sharedfiles/filedetails/?id=3372977383