Actually, MythBusters proved that one couldn’t happen, unless the bullets were sub-sonic or low-powered and the diver was within 1 or 2 foot of the surface… water’s just too dense and depletes the power. And something higher power just made a big splash and bits of shrapnel that didn’t have much penetrating power.
You’re using teams. Modern teams is built on Skype, which is why it’s shit.