I already have the projectile setup has the necessary components just trying to have the projectile follow an actor/pawn or character like a homing missle when i press a key.
you must update its velocity toward that actor.
there are different methods to do this.
do on tick event of your projectile: get projectile location and that actor location which you want projectile to follow
subtract the first location from the second then normalize the result vector.
now you have the direction which projectile must have to follow that actor.
then multiply that normalized vector by projectile’s current speed(its velocity length) and use the result to set projectile velocity.
I have not tried this method myself but I think it works