Im playing rogue assa in cata classic and after read some guide I don't understand some things about stats. 
I know as a rogue assa I have to priories hit rating until the spell hit cap of 17% (1332 if I remember) but i dont understand how to manage other stats like mastery and haste/crit or expertise. 
Did I have to put full mastery ? and reforge all the crit chance, expertise and reforge haste at least ? Or did I have to balance mastery and haste ?
Can someone help me to understand in wich ordre and priority I have to manage stats as Assa Rogue in wow cata classic ?

Hi, i need help with my race as a UH DK. I've been raiding with my guild and realize that the other UH DK (an orc) is topping DPS and me as a blood elf just suck. I've been looking at wcLogs and found that i got 2k strenght less than him, looking at the top UH DPS the first 20 or 30 are orcs.
I just wanna know if as an orc i had that 2k extra str. I've been looking for an answer since last week, just cant believe i got 2k str less than any other DK just for my race.
Thanks for your time guys.

We have another triple entry in the hotfix ledger, as Radiant Echoes gets more improvements in retail, while Season of Discovery and Cata Classic get additional class changes.
 August 7  (Source)
Player-characters
Steady Flight should no longer be removed after entering an Arena. Quests
We tuned up the Prototype Shredder MK-03 so that “Eye for an Eye” can be completed. Radiant Echoes Event
Increased Flightstone and upgrade Crest drop rates in the event. Reduced the HP scaling on all event bosses so that they should be killable in a more-reasonable timeframe. Developers’ notes: This includes both ‘minibosses’ (e.g. Hogger, Thorim) and final bosses (e.g. Remembered Onyxia, Ragnaros). Season of Discovery
Hunter Heart of the Lion once again has a 100 yard range. Warrior The Focused Rage rune will now correctly reduce the cost of Meathook by 3. Cataclysm Classic
Fixed an issue where Faerie Fire did not deal intended amounts of threat when used on NPCs targeting another unit.

Due to a bug introduced with the War Within pre-patch, some players are receiving item level 250 gear from the weekly cache.
We've seen numerous reports on Reddit and the official forums that the Last Hurrah weekly quest on live servers drop low-level gear for some players. Apparently, the bug was first introduced with the War Within pre-patch two weeks ago and still hasn't been fixed.
Here's an example of a low item level drop from the Cache of Awakened Treasures by Omnifox.

Week 2 brings quite a few changes, as Hunters in particular rise up, while Shadow has a really bad time. The top 3 remains the same and very consistent, so let's jump in and see what's going on.
Warcraft Logs Points
The below logs are based on POINTS, and not actual damage or healing, meaning they log the timed completion for the specs, with higher keys getting more points, obviously. The time in which the dungeon is completed is also a factor, but a much, much smaller one, as it grants very few points if you do it significantly faster than just any in-time completion. We're also using the Normalized Aggregate Scores numbers, for clarity, meaning the top spec is marked as 100 and then the rest are ranked in relation to that peak point.
All Keys
95th percentile DPS
The top 3 remains quite stable with the Evoker-Paladin-Warrior trio reigning supreme. We see the first change of the week right after that though, as Frost DK continues its upward march in dungeons as well as in raids, taking 4th from Elemental. Both DKs are on the rise, as Unholy also moves a spot up, taking advantage of Shadow's precipitous 5-spot fall to the bottom of the top 10. Arms remains stable as two Hunters burst in, Beast Mastery taking 8th and Marksmanship 9th, as Frost Mage disappears down towards the bottom. Speaking of the bottom, Devastation gets some new roommates there, as Outlaw and Destruction fall and give Enhancement and Feral a break.

Mythic+ All Keys 95th Percentile Data by Warcraft Logs.
All Percentiles
As with the top percentiles, the top 3 remains solid, but 4th is immediately changed, thanks to Shadow's massive drop in performance this week. The Priest loses even more ground here, falling 9 spots into 13th, opening 4th up for Arms. Beast Mastery moves even higher here, grabbing 5th and moving in front of Elemental and Frost DK, as Marksmanship brings up the rear and completes the Hunter sandwich in 8th. Affliction breaks into the top 10, just ahead of Unholy which dropped to the final spot.

Mythic+ All Keys All Percentile Data by Warcraft Logs.
Raw DPS U.GG DPS Rankings
U.gg's rankings are based on actual DPS taken from Warcraft Logs data, focusing on the top players and span the past two weeks.
Frost DK finds itself on top in the raw DPS rankings, as Augmentation isn't calculated properly here. Fury and Arms grab the next two spots, moving ahead of Ret, and the Fyr'alath wins continue in 5th, where Unholy finished the legendary axe streak. Even Survival joins the Hunter good times in 8th, where all three specs gather, just ahead of Balance who closes out the top 10.
Mythic+ All Keystone DPS rankings by u.gg.
 
 
For even more in-depth data for each individual key head on over to Warcraft Logs. And if you're interested in more info on the specs themselves you can always check out our class guides (updated for the pre-patch), as well as our Mythic+ guides and Mythic+ tier list.