So, first of all I have to state that none of this is set in stone, builds change, items change, people keep finding new ways of doing things. With that said though, I do theory-craft a lot of speed builds, and I don't think I've missed anything, so here are my findings!

TL:DR VERSION

Vault: Action shot Preparation: Focused mind Shadow power: Any rune Vengeance: Seethe Companion: Ferret Smoke screen: Displacement Hot pursuit Perfectionist Tactical Advantage Blood Vengeance

3 set shadow (shoulder, chest, feet) + rorg, Leorics crown, gloves of worship, krelms buff belt, hexing pants, prides fall, warzechian armguards, Danetta's hand xbows, rachel's ring of larceny, pandemonium loop, and pretty much any amulet (see below for 'best' choices) Dawn in cube. Boon, wreath and gogok/stricken.

Reforge for cdr/rcr/hatred regen untill you can maintain perma vault and smoke screen, otherwise damage stats (chc and ias not required)

FULL EXPLANATION

Since we're dealing with normal difficulty, damage is rarely an issue, so moving as fast as possible is what's required. There's 2 ways to be fast: Stack movement speed, or use abilities which somehow propel you forwards faster than movement speed normally would in that time-frame. The Demon Hunter happens to have one of these abilities: Vault.

The first thing to note about vault is that movement speed actually affects its animation speed, so the more movement speed you can stack, the faster vault goes, so stack it!

So movement speed is capped at 25% from gear and paragon points, but other items and skills can increase it beyond this.

ITEMS -----Krelms buff belt: 25% movement speed after not taking damage for 5 seconds (which is pretty much permanent during a speedrun) -----Warzechian Armguards: 70% movement speed for 3 seconds after destroying a wreckable object. -----Rachel's ring of larceny: 45-60% movement speed for 4 seconds after fearing an enemy.

LEGENDARY GEMS -----Wreath of lightning: 25% movement speed during wreath of lightning -----Boon of the hoarder: 30% movement speed for 2 seconds after picking up gold

SKILLS -----Smoke screen - displacement rune: 100% movement speed for 1 second -----Shadow power - shadow glide rune: 30% movement speed during shadow power (normally 5 seconds)

PASSIVE SKILLS -----Tactical advantage: 60% movement speed for 2 seconds after using vault, smokescree, shadow power or evasive fire backflip -----Hot pursuit: 20% movement speed for 4 seconds after hitting an enemy

EXTERNAL BUFFS -----Fleeting shrine: 25% movement speed for 2 minutes -----Dimensional speed: 20% movement speed for up to 1 minute after destroying wreckable objects (7 minumum) strangely this does not appear to stack with krelms buff belt!

I believe this is every movement speed buff a demon hunter can have, and it's possible to have every single one at the same time for a possible whopping 470% movement speed!

MECHANICS OF THE BUILD Vault normally costs discipline, which even with a lot of resource cost reduction would be impossible to maintain permanently, That's where the Danetta's hand crossbow set comes in. Danetta's makes vault cost 8 hatred instead of discipline (and puts a 9x multiplier on the damage of vault) With a little bit of resource cost reduction and hatred regeneration, you can just hold down your vault key and speed away!

Shadow power normally last 5 seconds and you'd have to recast it over and over, but with 4 set Shadow's mantle set, shadow power gains the effect of every rune and lasts forever, so mandatory for the build.

Gloves of worship can prove useful if you luck out and get a fleeting shrine - these increase the duration of shrine effect to 10 minutes.

To get the maximum up-time on smokescreen we'll need some discipline regeneration. Preparation with the focused mind rune gives the most discipline per cast, and stacking cooldown reduction allows you to cast this more often. Stacking resource cost reduction will also reduce the cost of smoke screen.

Due to the need for resource cost reduction and cooldown reduction, i like to use leorics crown (75-100% extra gem effect) with a diamond, and hexing pants of mr yan (25% increased resource regeneration and damage whilst moving) and prides fall (30% reduced resource costs after not taking damage for 5 seconds)

Jewellery: ring of royal grandeur would be required to maintain 4 set shadow whilst having the above items. Rachel's ring of larceny for movement speed on fear - which means we need to be able to fear. Pandemonium loop can roll up to 15% chance to fear, can get up to 2.6% chance to fear on each weapon, up to 5.1% on rachel's ring, and up to 5.1% on helm, for a total of up to 30.4%. Be advised, you can't fear enemies that get 1 shot - which happens a lot, so don't expect many procs. because of this, you could go with avarice band for pickup radius and obsidian ring of the zodiac for cooldown. As for amulets, there aren't really many choices - Haunt of vaxo for extra damage on bosses, ess of johan to gather enemies (usefull on some boss fights/events, can help with both boon/wreath gem procs too) or rondal's locket for pickup radius (helps with picking up gold for boon gem movement speed)

Dawn in cube - 65% reduced cooldown on vengeance - see below.

3rd Gem: Gogok of swiftness for more cooldown reduction, not a requirement, but can help if you're low. Otherwise I'd suggest Bane of the Stricken for faster boss kills (pretty much instant anyway)

Vault rune: As we have no actual damage dealing abilities, then we need to get damage from vault. The 2 option are Trail of cinders and action shot. Action shot hits everything around you, killing lots of enemies giving lots of gold from boon, and also reliably breaks objects to proc warzechian armguards. Trail of cinders could be useful if you use a cindercoat over prides fall, but the damage isn't great and you break a lot less objects, making warzechian armguards less effective.

2 more skills to go: Vengeance: seethe for the hatred regeneration, and the last is personal preference - if you find yourself running out of hatred, you can use companion: Bat (hatred regeneration plus on use 50 hatred) but my personal preference is companion: ferret - i find this really helps with picking up gold for the increased movement speed from boon.

Passive skills - on top of hot pursuit and tactical advantage, there are 3 other viable options for passive skills. --Blood vengeance: increases maximum hatred and refunds 30 hatred and 3 discipline when picking up a health globe. --Archery: extra hatred regeneration if you're low --Perfectionist: 10% discipline cost reduction

Reforges: Cooldown reduction and resource cost reduction on items until you feel you can maintain vault and smokescreen permanently. Hatred regeneration on weapons can help here. Otherwise, dexterity and critical hit damage (critical hit chance not required as the arrows from action shot rune on vault are automatically critical hits, and no attack speed required as it does not affect vault)

And there you have it! Other classes to come :)