Well I mentioned that. If you wait for the proper moment you can get a fair amount of kills with a titan. I've gotten a 5 for 1 twice playing control :p that being said it rarely happens outside of objective where people are clumped together. Also by waiting for that perfect moment you're getting rid of precious time to build up a super again. When I play as a Hunter it's much easier to activate golden gun whenever I please and look around and scope a few people out, then continue playing and building up another super. My point is that it's much much easier to get more super kills with a Hunter.