The mod being displayed in red can only mean one thing : you are trying to activate it while already in a lobby.
To activate it, simply launch the game, and go DIRECTLY to the "EXTRA" Menu, then click on "Manage Mods" or something (my game menu is in french, so I don't know the exact english name of the button).
I've made it this way because the mod messes with the lobby, so I prefer people not to activate it when already in a lobby.
Thanks for trying my mod anyway, don't hesitate to ask if there is anything else.
Sorry for the lack of updates, but I've been working like crazy all summer, and haven't touched anything mod-related so far. I'll try to look into that when I get some time, which should be soon. But if you know of anyone with moding skills that'd do it sooner, feel free to ask them.
Thanks for your support !
Thanks for your fast answer I try to play with Blackop 4.3 but I have big problem ... I hope that in future you can fix your mod with this mod .... thanx byeeeee