Can someone please remind me

Sorry, but I don't remember anything about Sabatino, other than the fact that the name sounds familiar. This is the only thing the wiki has on him:

Vostanik Sabatino is an agent with the CIA. Sabatino appeared under the alias, Roger McAdams in the episode, The Watchers (episode). His real identity is not revealed, after NCIS Assistant Director Owen Granger stopped the interview Agents Callen and Hanna were conducting.

I have no enemies, but am intensely disliked by my friends.

He has recurred a number of times (love Erik Palladino 😀😀😀). He was involved in the search for Isaac Sidirov and the stolen nukes (season 4...?) and later was in Afghanistan with Kensi, who thought for a while that he might be The White Ghost (he wasn't). I think that' s the last time we saw him; he was injured in the mission to rescue Kensi ("Spoils of War.")

Sabatino is the CIA agent who was working in Afghanistan during the White Ghost story line. He worked alone. He told Kensi the first shooter was beheaded. Granger vouched for him when Kensi thought Sabatino might be the White Ghost. He was also in the group that rescued her.

What was the mission NCIS was on when Kensi shot Sullivan (Ferris)? The team's only been to Afghanistan a few times: Bounty, Recruit, the White Ghost episodes, and Belly of the Beast (this season), I think.