I personally love paint balling and lazer tag. You can really get into the game this way. I always go all out and imagine myself in a Battlefield type scenario... it just makes it that much more exciting.
I saw this today on Google+:
Battlefield 5 on Google Glasses... That would be god-like. Though, arguably unsafe. Running around an abandoned area where you could fall and hurt yourself? That creates a large variety of legal issues. No one would ever go for it. However, you could easily do something like this in a safe closed environment. For example, take a paintball place and have players where these glasses: They'd be playing paintball in real life, but they'd get a battlefield type experience.
Maybe I should talk to Google about doing that.
I would pay a pretty penny to play.