Designed for commando and espionage operation, the main strength of a covert ops vessel is the ability to travel unseen through enemy territory and avoid unfavorable encounters.

主要用于侦察行动，其主要长项是能够隐身穿越敌战区，避免不必要的遭遇战。

youdao

Usually, it is only the Delta and Seal teams that get to do covert ops.

BBC: Snipers

"Write what you know" works if your father runs covert ops for the CIA. "Write what you know" works if your mother infiltrated the mob.

WSJ: Screenwriter-Novelist Derek Haas on Popcorn Fare | Word Craft