Currently produced episode 6×04 (air date & # tba) – written by Frank Military and directed by Dennis Smith – is named “Black Budget” according to a post from kabookit.com:

Booking: NCIS: LOS ANGELES – Across The Board Talent Agency (ATB Talent)
BEN MACCABEE
Booked: NCIS: LOS ANGELES Episode #604-126 “Black Budget”
Role: BORDER PATROL AGENT
Represented By: Across The Board Talent Agency (ATB Talent)
Casting Director: SUSAN BLUESTEIN

ATB Talent tweeted themselves “Congrats to Ben Maccabee for booking a great role opposite LL COOL J on “NCIS: LA”” on Sept 10th.

Yeah, congrats, Ben !!