Projectile firing on characters facing

hi
i currently have a action in my level where the character picks up and throws a rock. upon throwing the rock i have a rock projectile that spawns and fires from the character which is great…
however the projectile always fires facing the same global heading (y+) [regardless of the direction im facing (north,south,east,west). it always fires west]
how can i effectively parent the projectile to my character or characters location so that the direction the character is facing becomes the direction the projectile is fired ?

many thanks

images below

just re-adding the projectile details image to my question