You need level 32 characters to be able to complete Crota’s End Hard Mode.
Traverse the Abyss Crota’s End Raid Hard Mode The Dark Below
This information for Crota’s End Hard Mode is on top of the standard mode guide:
https://auluftwaffles.com/2014/12/09/traverse-the-abyss-crotas-end-raid-the-dark-below-destiny/
Weight of will only go up to 10 but it ticks up faster. Hallowed Thralls can spawn and more Thralls will spawn. The maze is the same in terms of layout, please see this page for a map that also shows chest locations:
https://auluftwaffles.com/2014/12/10/chest-locations-crotas-end-raid-in-the-dark-below-in-destiny/
The lamps last shorter so you need to be faster going through The Abyss. Most people are calling 2 materials from the first chest, so only single loot for the first chest.
At the end of The Abyss when activating the bridge get a hunter to activate the light circle and then hide behind the pillars. Keep switching sides and go into stealth and run across the bridge as soon as you can.
Annihilater Totems Cross the Bridge Crota’s End Raid Hard Mode
This information for Crota’s End Hard Mode is on top of the standard mode guide:
The Swordbearer is harder to kill, switch to Solar grenades to make it easier. Totems will turn red faster so you have less time that you can spend off the Annihilater Totems. It takes 5 hits to kill the Guardians. The Hallowed Ogres are level 33 so your team needs to focus it down. Get to high ground to avoid the thralls.
The second chest is single loot as well.
Ir Yût Deathsinger Reach the Summoning Crystal Crota’s End Raid Hard Mode
This information for Crota’s End Hard Mode is on top of the standard mode guide:
The Hallowed Wizards are level 33 so it is harder to kill. The Litugy is faster, seems like two minutes.
Kill Crota Crota’s End Raid Hard Mode
This information for Crota’s End Hard Mode is on top of the standard mode guide:
https://auluftwaffles.com/2014/12/10/kill-crota-crotas-end-raid-the-dark-below-destiny/
There is no Challice, so no healing. Boomers are Elite mobs so they do more damage and are harder to kill. The Knights are Hallowed Knights so they also do more damage and are harder to kill. The Swordbearer is level 33. Wizards spawn with Oversoul. Transfusion works with Titans. Hunter super does heal you. Cyrus heals you. Wizards instead of knights spawn on the bridge when the boomers die. Don’t kill them with rockets, you need them for kill Crota, but you need to kill them faster.
There is a Gatekeeper in the lower catacombs so you can’t sit there anymore, killing the Gatekeeper does nothing so don’t bother (he doesn’t drop anything). You need to stay in the upper level to kill to Hallowed Ogres. Crota’s shield takes more damage now. You can keep the boomers permanently blinded so the Wizard doesn’t spawn, but that takes a lot of grenades.
Orbs in the bottom area will help you a lot, especially if the dedicated sword player has the helmet that heals you on orb pick up.