the scene where clamenza is teaching mike how to shoot the gun, clamenza starts going on about how vito was proud of mike. it always seemed to me that he was just trying to make mike feel guilty and go ahead with his plan. after all wasn't it knowledge that vito disapproved of him joining the marines. so my question is, do you think clamenza was being honest and sincere, or was he just trying to make mike feel guilty?

I think that Clemenza was being very sincere. I think he was trying to tell Michael that, in spite of Vito's public disapproval, he was secretly proud of Michael's achievements, as they all were. I think that he was just trying to let Michael know that before he was sent away.