OK, This is a pet peeve of mine, but to me, not providing ballistic protection to the crews of deck mounted .50 calibers, that we make a target by putting them on exposed crew served mounts, is irresponsible and frankly, lazy and unconscionable. It is just not that hard.
If you look at the photo above, you will see simple flat plates outboard of the .50 caliber mounts. Now look at the photo below (you might need to click on the photo to enlarge it). There is no comparable protection. This does not have to be heavy if you think that might be a problem. Kevlar reinforced plastic can provide protection against machinegun fire.
There is talk of escorting merchant ships through the Straits of Hormuz. I don’t know if our WPBs there have any form of ballistic protection, but the pictures I have seen in the past showed no such protection.
This is about more than simply protecting the gunner. The gunner protects the ship; the ship is needed for the mission. Take out the gunner, the ship is vulnerable. If the ship is vulnerable, it may not be able to complete the mission.