I really liked NailBrains idea of melee perks that require a melee trait, so here's his idea as a proper suggestion.
Primitive Brute (Trait)+1 ST, +1 EN, +5 melee damage, can't use small guns, big guns or energy weapons
Bruitish Hulk (Perk)+20 HP
Requirements: Level 12, Endurance 8, Primitive Brute
Die Hard (Perk)+10% damage resistance if HP get below 20%
Requirements: Level 9, Endurance 8, Primitive Brute
Tough Hide (Perk)+5% normal damage resistance
Requirements: Level 9, Endurance 8, Primitive Brute
Hide of Scars (Perk)+10% normal damage resistance
Requirements: Level 12, Endurance 10, Tough Hide, Primitive Brute
Paralyzing Palm (Perk)Each successful attack lowers the target's current AP by 1.
Requirements: Level 18, Agility 8, Close Combat 180, Primitive Brute
Unstoppable Force (Perk)25% chance to cause double damage.
Requirements: Level 18, Strength 8, Close Combat 180, Primitive Brute