Try to punish Vivian's lack of movement ability with ultimates as Koga's or Skye's to kill her, especially when she has her ultimate up.

If playing Stunning Visage, when you stun Viktor he has his head up, so try to headshot your shots when he is stunned and an extra 600 dmg after going through him are enough to kill him.

If you are playing Stunning Visage, wait for her shield to come up then stun her, which completely shuts down her shield. Then, she is an easy target to burst down.

Try to use flick shots if engaging Kinessa, as her sniper mode can be detrimental for her. Try to use nether step to get behind her each time she changes direction.