here is the smooth version 
screenshots follow soon
you can also use your input… this is just my character i mess with atm ^^
this is all in abp… better to make it it´s worn component later…
here where the WorldDeltaSeconds get multiplied by 4, this is the smoothing for the aiming
this is on the character…
the function that calls over interface is just a a float for the turn
hope this helps 