My own?
I second Project Nevada and WMX. Those are actually the only weapon mods I run, other than my own. It seems like all the rest are ultra modern, which I'm not that interested in, even if they are well done.
I agree, while they look amazing and are perfectly done, they just do not fit in with the lore and somwhat breaks my immersion...
There is a mod for Fo3 called Scavenger Armors. I absolutely LOVE them because most of them fit in with the lore quite well. There are some more modern military items as well but even those are awsome...And Project Mikoto ported these armors in a mod called The Armorer (along with some batman stuff wich looks cool but is not my cup of tea)
The origional mod page is http://www.fallout3nexus.com/downloads/file.php?id=10228 which I recommend checking out first because it has TONS of screenshots of the armor while the ported mod doesnt.
http://www.newvegasnexus.com/downloads/file.php?id=36618 is the ported mod by Project Mikoto.
Enjoy!
P.S. There is a New Vegas Mods forum here and this thread would be better suited there..But I dont care, just for future referance