Is this a memory issue? I guess if im playing long enough, Ill stop hearing the footstep sounds and definitely the Solid Project takedown sounds. Is there a fix for this?

try posting this inside ur FalloutCustom.ini

[Audio]
iAudioCacheSize=8192
iMaxSizeForCachedSound=1024

u could try 4096 if it causes audio stuttering etc.

I have had issues with all sorts of strange issues when I have too many mods installed (that is above what my computer used to be able to handle.) Even if the mod list is low the content can be high. Do you have a lot of sound files for your mods? Like Radio replaces, ambient sound mods etc. Something to think of...

The above might help. Not sure of the #s due to my not really needing to fix the problem(figure it out and just removed a couple of my mods resolving the issue) but something to really check into. Make sure you have a good back up of your changes (especially if you made a lot of changes to the .ini don't want to later have to fix it or if needed to reload the game.. forget you needed that setting )

thanks for the advice guys! I do have a lot of ambiant music, radios, power armor footstep mods lol.
Trying it out and hoping for the best