The guys who were developing a HUD for paintball used to have
a Facebook page, as well as a website, but I think they pulled it
some time back. Was an excellent idea, but I suspect it'd be too
costly for most players. The ski goggle HUD unit by itself runs
over 300.00 if I'm not mistaken. Even at that the concept only
works if you have someone else who also has one. Here's a link
to the page where this was all being discussed a couple years
ago. Check out the video links, but forget following the site link
as that's dead.
https://www.pbnation.com/showthread.php?t=3894938
BTW, I have seen a system which was being pitched to the Navy
SEALs, which not only provided a way to link up to two different
radios they carry. It could also call up a map of anywhere on the
planet, plus translate in multiple languages. If that wasn't enough
you could even call up drawings of weapons, showing them in
exploded view. t the time this was being pitched, 2-3 years ago
the SEALs said they also wanted to be ale to link with Sats, so
they could send video to the brass and also so they could designate
a target for drone or bombing. Pretty cool, but again I doubt it's
something anyone here will ever see, unless they're with in one
of the teams.