Close Quarters Combat | D4 Rogue Key Passive

Close Quarters Combat is a Rogue Key Passive with the following effect (simplified):
Damaging a Close enemy with Marksman or Cutthroat Skills each grant a 10% Attack Speed bonus for 8s. If both bonuses are active, you deal 20% increased damage to Crown Controlled enemies.

Once you select Close Quarters Combat as your Key Passive, you can't select any other Rogue Key Passive. They're considered to be very important parts of your build, so it merits quite a bit of possible discussion.

How best to use Close Quarters Combat

Basically this segment will be giving you a rundown on the basics on the "WHEN, HOW, and WHY" of the Close Quarters Combat Key Passive.

Questions we would answer here would be like:
How to use Close Quarters Combat, as a baseline.
Why you would choose Close Quarters Combat over other Key Passives.
When would you consider Close Quarters Combat? As a build-around? An "augmentation"?

Close Quarters Combat Core Synergies

TBA: When choosing Close Quarters Combat, are there "absolute godtier" level synergies you essentially NEED to take?

Related Links & Other Information

Still got a lot to do, a lot of data to track, and how best to present it! Post-launch will clarify alot of this for us!

In the meantime, Related Links:

• If you're here, you're probably looking for some info on the Rogue Class.
• Related Skill Tree Nodes: Close Quarters Combat
• Summary of all D4 Build and Character Customization Systems.