Trait: By your arms

The chapter has undergone some sort of physical mutation such as razor sharp claws, or super dense skull plating. All Tactical squads, Assault Squads, and Command squads (Not terminator command squads) gain +1 attack at +5 pts per model.

This trait was designed based on the Black Dragons. I know in the Chapter Approved, the Black Dragons got the rending ability, but it just seems way too much for such a simple concept. So they get +1 attack instead. But that means +1 in addition to +1 for a CC weapon and Pistol. And that adds into the +1 for charging. So that means you get 3 extra attacks per marine!!