What class and level are you? I have solo'd that mission 3 times as a level 26 Warlock (Voidwalker) and almost got through last time without dying. I don't know how well it would worl for other classes as the special really helps. My class is legendary auto rifle, solar sniper, arc rocket launcher. In each section take down all the smaller enemies before taking on the 'boss' of the area. Most mini bosses have blue shield so rocket launch them, mine kills them in one shot but if not their shield will be down so switch to your primary and kill them. The Solar sniper is useful for the wizards you meet and the flying fallen bots (cant remember the name) as they have orange shields.
The two really hard bits I found first time round was the ogre and final boss. As soon as I trigger the ogre throw a grenade which will help damage all the other enemies that spawn. Once throwm retreat and stay out of sight of the ogre while picking everyone else off. For the ogre I use cover to get close then my Warlock super takes it down in one shot ( I don't know if a Hunters or Titans will as haven't tried). The other hard part is the final boss but keep your rockets back if you can, kill the ones praying and put your ghost in to the shrine and run back to where you came in. You can easily stay out of sight of the boss while killing everyon else, once dead fire a rocket at the boss. My launcher has 2 rounds so I can fire both but if you don't have time or miss then retreat back to the corridor you came from as all the small enemies respawn. Just repeat until you have killed the final boss then it is easy to destroy the shrine.
That easy

If you are on ps4 happy to play it through with you.