The requirements for this perk aren't entirely straightforward. First you have to complete "Up Close" (50 melee kills), which will unlock "Up Closer" (75 melee kills) which you'll also have to complete. Completing "Up Closer" will unlock "I Can Do It One Handed" (10,000 damage with one-handed melee weapons) and "Two Hands are Better than One" (10,000 damage with two-handed melee weapons). Those two challenges will reward you with one rank each.
- Rank 1: +5% Melee attack speed
- Rank 2: +10% Melee attack speed
- Synergizes well with Slayer and Ain't Like That Now.
- The description on the Pip-Boy for I Can Do It One Handed mistakenly says 'kill' enemies with one handed melee weapons instead of 'do/inflict damage' like the other challenges of this type.