Why don't you try finishing up the tutorial? You might've mastered the first step, but nailing down the fundamentals is what's important.

In the campaign, use the Droid to shock three enemies at once.

Reach terminal velocity

Complete the mission "The Cleaner".

Qualify from your first round

Defeat 20 Enemies with Hand-to-Hand Combat

Kill 20 Enemies with Headshots

Unlock a Car

Defeated Slone

Collect all of BT's loadouts in the Campaign

Secured the Ark

Perform a melee takedown while cloaked in the Campaign

Destroy a Titan with your Flight Core in the Campaign