Why is "Fall back" The same sound as "Everyone Attack"?

Why is "Get the Medals" the same sound as "Collecting Medals"?

Why do "Attack healer/ranged/tank/melee" sound the same?

These are all super ambiguous if people are just relying on the sound and not reading chat. I've had so many people fall back when I called attack because they sound the same.

Please make these unique sounds. Otherwise there's no point in the sounds other than sounding annoying.