All Starfleet personnel, regardless of uniform colour, will know how to shoot a phaser and hit a target--some better than others.
But it did always seem weird to me that Security, Engineering and Operations shared the same colour. The latter two I can understand, there will be a lot of areas they overlap and plenty of skills from one will be transferable to the other, but Security should've been in its own colour (green or perhaps grey, something that didn't stick out like a sore thumb).
But it did always seem weird to me that Security, Engineering and Operations shared the same colour. The latter two I can understand, there will be a lot of areas they overlap and plenty of skills from one will be transferable to the other, but Security should've been in its own colour (green or perhaps grey, something that didn't stick out like a sore thumb).