(1) The Court shall then retire and consider and determine on the punishment proper to be inflicted in conformity with the finding, and all the members of the court, whether they have voted for an acquittal or not, shall vote on the question of what punishment is proper to be awarded for the offence of which the accused has been found guilty.
     (2) The trial Judge advocate shall sit with the court while they are considering the sentence and assist the court in the determination of the sentence but shall not vote thereon.