I just wear mesh goggles, reason being, they perfectly save your eyes, they don't limit your peripheral vision, they're not uncomfortable and unlike wearing a full mask or a lower face mask, you can still actually aim your rifle if need be.
They also can't fog up under any circumstances and you can get a decent pair for about £15 on eBay.
With regard to wanting to save your no doubt pretty face, in a CQB situation you'll A hear, or B, see anyone that's likely to shoot you in the face and you'll have time to turn and avoid being hit in the face, not to mention most people walk around with their gun lowered and then raise it to shoot, meaning you're highly unlikely to be shot in the face at close range anyway.
Then if people are far away you only won't know they're shooting at you if they're behind you, in which case a mask won't help anyway and if they're infront of you, you can shield your head by turning or taking cover etc.
For the massively tiny chance of you getting hit in the face I think it's a price worth paying for having the enhanced ability to actually see people to avoid being shot in the first place. The added awareness kind of makes the chance of you being shot in general lower anyway so the two cancel each other out.
Still, it's your call at the end of the day, as Marksman said, Fire Support are good for face masks. I'd always recommend mesh over lenses though, I've never owned a pair of ballistic goggles that haven't had a fogging issue.