This is the in game build and can be changed

Deft Hands
Weapon
Increase your Reload Speed by 60%.
Level 3

Life Rip
Weapon
Your weapon shots gain +30% Lifesteal.
Level 3

Nimble
Armor
Gain 21% Movement Speed.
Level 3

Wrecker
Weapon
Your weapon attacks deal 90% increased Damage to Shields.
Level 3

Life Rip
Weapon
Your weapon shots gain +10% Lifesteal.
Level 1

Haven
Armor
Reduce the Damage you take from Direct and Area of Effect attacks by 18%.
Level 3

Nimble
Armor
Gain 21% Movement Speed.
Level 3

Resilience
Armor
Reduce the duration and effectiveness of Crowd Control and Slows by 75%.
Level 3
This is some of the card build I use depends on what the team needs

Reflexes
Iron Sights
Reduce the time it takes to bring up Iron Sights by 45%.
Level 3

Predator
Iron Sights
Gain 25% Lifesteal while using Iron Sights.
Level 5

Compensator
Iron Sights
Reduce your weapon recoil by 40% while using Iron Sights.
Level 2

Flak Jacket
Armor
Increase your maximum Health by 200.
Level 4

Speed Load
Weapon
Generate 7 Ammo after getting a Killing Blow or Elimination.
Level 1

Predator
Iron Sights
Gain 25% Lifesteal while using Iron Sights.
Level 5

Reflexes
Iron Sights
Reduce the time it takes to bring up Iron Sights by 75%.
Level 5

Fire in the Hole
Frag Grenade
Generate 12 Ammo for each enemy hit with Frag Grenade.
Level 2

Compensator
Iron Sights
Reduce your weapon recoil by 40% while using Iron Sights.
Level 2

Grenadier
Frag Grenade
Reduce the Cooldown of Frag Grenade by 2s for each enemy hit by it.