EDIT: Links to the various runs for easy finding:
Youtube Resetless Compilation (All Runs in Order)
Deathless Resetless Lunatic+ (The Counter, Counter Everywhere Run; 260 Compatable) - Part 1 - Part 2 - Part 3 - Part 4 - Part 5 - Youtube Playlist
Second Deathless Resetless Lunatic+ (The Revenge of Vanilla Robin; 260 Compatable) - Part 1 - Part 2 - Part 3 - Part 4 - Youtube Playlist
Third Deathless Resetless Lunatic+ (The Charm of 3; 260 Compatable) - Part 1 - Pa
Update time! Got the chapter 1 guide complete now. But first, changes to Prologue:
-Robin takes a potshot on turn 1 before Fred offs the Myrm (thanks, Czar_Yoshi for pointing that out)
-Fred takes Chrom's swords on turn 2 (Czar_Yoshi again), then gives them back as he pairs up later.
Anyway, onward to the chapter 1 guide:
Pre-reqs:
-Fred and Robin should each enter the battle with a Vulnerary.
-Chrom and Avatar to have attained max support points, which is 12 points; 3 for