[2019] Uptiered in T8 DD to T10 match with a CV and bunch of radar?

Very well said @Shoggoth_pinup. You bring up a skill set that I am seeing more and more DD's beginning to do. The concept of "Screening" is to provide protection for ships or just to curtail the freedom of movement of the red team. This can be most effective when your DD is unspotted and you are lighting them up for your own side. Being that "phantom menace" can cause hesitation and indecision by the red team. It also provides your own team with more information that can lead to intercepting a push on your CV or an unprotected cap. Just my thoughts

Screening, simple yet effective and something you can do regardless of the tiering of the match.