Guide to Obtaining the Crusader Title and Achievement in World of Warcraft (Horde) - Part 2 of 2

The best way to start gaining reputation with Orgrimmar is to do all the starter quests for Orcs and Trolls. This would begin with Valley of Trials then moving on to Sen'jin Village and then hitting Razor Hill.

(Note: Keep in mind that some or most of the quests here would give reputation for both Darkspear Trolls as well as Orgrimmar. Most often you get more of Darkspear Trolls. The reason for this is that Orcs and Trolls share the starting area)

Do virtually every quest you can grab in Durotar which includes the above mentioned sub-zones since they give potloads of reputation for both factions. Once you are done with this starter zone move into Orgrimmar and grab a quest for RFC(Ragefire Chasm) given by  the guy right outside the instance along with "Hidden Enemies" given by Thrall himself. Also get two other quests for this very instance from Thunder Bluff, namely - Testing an Enemy's Strength and Returning the Lost Satchel. Even though they would give Thunder Bluff rep it is still worth doing them since they each give 500 rep a piece.

Once you are through with these you can move onto the good old Barrens. Here almost all of the quests especially from Crossroads give atleast 250 rep along with 62-63 splash rep for other cities.

(Note: Listing down each and every quest that gives a certain type of reputation is virtually impossible. Although I will try to list all the key quests which give enormous amount of rep for each of the home cities. Make sure to use this tool provided by wowhead to track and filter specific reputation quests that you are looking for - be it Instance quests, daily quests or normal quests)

For this particular faction you will have to do quite a lot of world-tour in Azeroth. Most of the quests that give Darkspear Trolls rep are spread out widely throughout the world balancing between Kalimdor and Eastern Kingdoms. Some of the key quests that you could do quickly to gain reputation with this faction are listed below: 

1. I had mentioned this above and I will mention this again. Starting zone. A lot of the quests would give reputation for both Darkspear Trolls as well as Orgrimmar. At level 80 you can complete most of these starting zone quests pretty quickly so it is worth the time spent to do them.

2. Some of the quests in Barrens which include Egg Hunt, the harpy chain which leads to Malaka'Jin in Stonetalon Mountains give significant amount of rep. Two quests also can be completed in Malaka'Jin itself.

3. There are two trolls surrounding a cauldron at Grom'gol Base Camp in Stranglethorn Vale. Complete all the quests including the one that leads to Hinterlands.

4. There are trolls inside the outpost of Hammerfall. Completing all Stromgarde quest chains. Further, other quests like the one to kill Marez Cowl and the raptor chain involving Gor'mul and Tor'gan, are worth significant reputation.

5. There is a troll-dominated village called Shadowprey in the southwestern part of Desolace. You can complete all of these quests too.

6. Zoram Strand is another location in the northwestern area of Ashenvale. All of the quests given by them also give insane amount of Darkspear Trolls rep including the Blackfathom Deeps quests that precede after the normal ones.