Translated automatically from Italian: talent and ability names stay in English, as in the game. Original text (Italian) →
Dual-wield Combat Rogue, the simplest road to 60: Sinister Strike to build Combo Points, Eviscerate to finish. The first spike comes at 20 with Riposte, then Blade Flurry at 30 and Adrenaline Rush at 40, all on the Rogue trees reworked on 2 November.
How to play it
This build takes down one enemy after another with a slow main-hand weapon and a very frugal use of Energy. It is the most approachable spec for leveling a Rogue and the only one with real two-target damage, thanks to Blade Flurry. The points are 16/35/0, already on the trees reworked on 2 November.
Where the points go, 10 to 60
10-11: Efficient Strikes, which makes Sinister Strike cheaper.
12-14: Coup de Grace, +20% Eviscerate damage.
15-19: Precision, to miss fewer hits (it matters a lot against higher-level enemies), and Deflection, which opens the way to Riposte.
20: Riposte, the first real power spike: after every parry you get a hard, cheap hit that also disarms the enemy.
21-29: Composure (Poised saves more Energy), Endurance, Flawless Execution, Weapon Expertise (fewer dodged and parried hits) and the first points of Aggression, for a cheaper and stronger Eviscerate and Sinister Strike.
30: Blade Flurry, extra attack speed and a second target.
31-34: Hack and Slash, which replaces the old weapon specializations.
35-39: Flash of Steel: Shank gives you more Energy and comes back sooner.
40: Adrenaline Rush, Energy regeneration doubled for 15 seconds.
41-44: finish Combat with the last points of Hack and Slash and Aggression and with Dual Wield Specialization.
45-60: Assassination, with Remorseless Attacks, Malice, Ruthlessness, Blood Splatter, Lethality and Improved Slice and Dice, up to Cold Blood at 60.
What to press and when
From 20, with the poison quest, put Instant Poison on both weapons; Crippling Poison if the enemy tends to run away. Open from Stealth with Cheap Shot if the target can be stunned, with Garrote if not. Then, in this order: Riposte every time you can use it, Shank on every cooldown for Energy, Sinister Strike for Combo Points. To spend them: Slice and Dice if the enemy will live long enough to make use of it, otherwise Eviscerate at 5 Combo Points. Cold Blood goes on Eviscerate, never on the builder. If there are two enemies, Blade Flurry, perhaps together with Evasion. Never sit at full Energy and keep Adrenaline Rush for the toughest fights.
Which weapons to look for
What matters most is a slow main-hand weapon with high top-end damage, the one that decides how hard Sinister Strike hits: that is why daggers are best left alone with this build. With Hack and Slash the weapon type counts too: swords and axes give extra attacks, maces ignore armor. After the weapon come Hit and Expertise, Agility, crit, Strength and Stamina.
Strengths
Strong single-target damage.
Blade Flurry hits two enemies at once.
Plenty of crowd control and escapes: Stealth, Gouge, Blind, Vanish, Evasion.
The easiest Rogue spec to learn for leveling.
Weaknesses
No real AoE damage.
Suffers a lot from enemy crowd control.
No self-healing: lives on bandages and food.
Slow to tag enemies from range.
Notes
Milestones worth writing down: dual wield at 10, lockpicking quest at 15, Riposte and poisons at 20, Vanish at 22, Shank at 24 (a baseline ability in Forever), Cheap Shot at 26, Blade Flurry at 30, Blind at 34, Adrenaline Rush at 40 and the Ravenholdt questline from 50.
Level First Aid: between fights, bandages, with Blind to catch your breath, cost you less time than food.
When solo, use Evasion freely: less damage taken, fewer breaks. Do the hard quests in a group, because you are slow to tag enemies from range.
Make use of camp and campfire buffs, and kill the enemies you find between one objective and the next.
Race: Gnome for the Alliance (Expansive Mind, +5% maximum Energy, and Eureka!), Orc for the Horde.
If you prefer playing from Stealth, the alternative road is Subtlety.