Why this build
How the build works
This Beast Mastery Hunter build makes your pet and hawks do most of the damage. Unleashed Fury adds 15% to their damage and Ferocity 8% to their crit chance at 4/5. Focused Fire gives you and your pet 2% more damage while the pet is out, which is always.
Summon Hawk is the button that defines Beast Mastery in WoW Forever. A hawk dive-bombs your target for 32 plus 5% of your Ranged Attack Power and keeps attacking for 18 sec. You can have two out at once, and both benefit from Unleashed Fury and Ferocity.
Deadly Aspects is your own damage: with Aspect of the Hawk, Auto Shot has a 10% chance to raise your ranged attack speed by 30% for 12 sec. Endurance Training adds 9% health and armor to your pet, and Spirit Bond heals you and your pet for 1% of max health every 10 sec.
Leveling tips
Spend levels 10 to 14 on Deadly Aspects, then Focused Fire and Endurance Training. Unleashed Fury takes levels 20 to 24, and Summon Hawk arrives at level 25, the first moment row 4 opens. Pick it up as soon as you can; it is a big jump in damage.
Let your pet build threat before you shoot. Traps can be used in combat in WoW Forever, so an Immolation Trap under your target is free damage. If a mob gets to you, weave Raptor Strike between Auto Shots instead of backing away every time.
Beast Mastery is also fine in dungeons at this level, though you need to watch pet threat and turn off Growl when you are not tanking with it. These Hunter talents are the same for solo and group play.
Changes in WoW Forever
Summon Hawk and Focused Fire are new; Focused Fire replaced Improved Eyes of the Beast. Unleashed Fury and Ferocity now also affect hawks, and Unleashed Fury was fixed in October so it really increases pet damage. Pets inherit 10% of your Attack Power and 100% of your crit. The 28 Oct hotfix lowered the Ranged Attack Power from Aspect of the Hawk, and the 30 Oct data moved Pathfinding to row 3 and Improved Revive Pet to row 2.
Toward level 60
Provisional, but this is the spec with the best agreement. Guides and the simulated build both land on roughly 31 points in Beast Mastery (Frenzy, Intimidation, Bestial Discipline, Bestial Wrath) and 20 in Marksmanship for Lethal Attacks, Careful Aim, Rapid Killing, Trueshot Aura and Mortal Shots.