Can you carry a 27 through the first two parts that can be cheesed?
Ive already completed it with my main which is a 31
Lamps section can be soloed with any class with a bit of patience from level 27. Bladedancer warlock makes it very easy. Otherwise it can be a bit annoying getting to second lamp without thralls getting you. Any class can get first chest of course.
Sunsinger warlock any level can solo cheese bridge. Any mates as well.
Section after bridge can be soloed by any class, but you only get one shot. I fluffed it last time. Gjallarhorn is your friend. That's all your armour drops! Just weapons on Crota, and most people are a spectator on that.