Inv helps only for lamps dont really need it for anywhere else. Bridge is easy once you get the jump swipe across hang out at the door to the timed chest on the rock go down shoot orges go back up, repeat till done you have to kill the one witch that comes out the door but you dont normaly need to worry about the other one. Hallway just take it slow, kill shriekers inv can help here but not necessary. Deathsingers just a system go left take out witch in room as she leaves glass kill shrieker repeat other side the kill adds on that side till song starts the get on coffin ledge thing and snipe her ill dead as she doesn't move. Crota a pain but just be patient first time expect to have orges once you get it down you can 2 sword him. I go right and gally from rock jump and smash 2 times each sword. Things to watch for boomers can be a pain just ignore them chalice should do its thing but watch heath better to only get 2 smashes and live than keep going and get killed. Rockets will explode on a dropped sword infront of you, found out this the hard way 😂 good luck