Titan can also carry your ass through lamps part (and through bridge part and is very usefull with its bubble in the ir yut part) Next to that hunter loves a good titan on his/her side at crota hm for the bubble to distract the boomers and warlocks too for the orbs and also bridge part. I personally would not say some class carries another. They all have their benefits. I have a lvl 32 of each.