Legendary Deathless Walkthroughs

Now, as we know, some of the challenges given to us involve us travelling through a level without dying while on Legendary.  You could do this in a pair, where 1 person goes off ahead to sweep the path, there are some of us though who like to do it solo for a bit of an extra challenge.  This can be tricky, so here I present to you, How to get through Halo Reach on Solo Legendary without Dying.  Well, O.K. it's just 1 level so far, still, it's a start.

??? - Winter Contingency
Office of Not Dying - O.N.I Sword Base
Mostly at Night - Nightfall
Deathless Spear - Tip of the Spear

Will add more as I work on them.