I've been looking at the Freesounds 1.3.1 soundset. I haven't gone through every single sound, of course, but I noticed the sound labeled f_generic seems to be missing credit in the "Authors" file. I think it's --
https://freesound.org/people/Erdie/sounds/29618/
-- since there's a lot of other sounds credited to this same account. It's easy to lose track of one item when you're making a long list...it's certainly happened to me before.
Also, there are several grenade sounds credited to Miregrobar. As you can see here, all of those sounds are currently missing from their page. Just in case this is somehow a problem, I figured I should let someone know.
https://freesound.org/people/miregrobar/