Well, it might be that the OC has a personal connection to an ongoing case. Hetty, being the shrewd character she is, hires the OC to use that connection to the team's advantage. Perhaps the OC has a past with a criminal organization that the NCIS LA team is currently investigating, and their inside knowledge could be crucial.
The OC could also impact the team's morale. If they are highly motivated and positive, it could boost the overall mood of the team. On the other hand, if they struggle in their new role, it could put some pressure on the team to help them out. But overall, their presence would likely force the team to reevaluate their own roles and relationships as they adapt to having this new member around.
The plot could be that Hetty's sister, an original character (oc), comes to work with the NCIS LA team temporarily. She has a unique skill set, like being an expert in a particular type of forensics that the team lacks. However, her presence also stirs up some old rivalries within the agency because of her connection to Hetty.
Perhaps a fanfic where Hetty's sister is an old acquaintance of one of the NCIS LA agents. She shows up with a mystery from their past that they all have to solve together. This could lead to flashbacks and revelations about the agent's early days, and how Hetty's sister was a part of it all.
One great NCIS LA Hetty Daughter OC fanfic is 'The Hidden Legacy'. It delves deep into the character of Hetty's daughter as an original character. The story is filled with intrigue as she gets involved in the NCIS LA operations in a unique way. It has great character development and a plot that keeps you hooked from start to finish.
The main thing is the exploration of new relationships. Since the daughter is an OC, the writer can create unique dynamics between her and the existing characters. For example, her relationship with Hetty can be explored in ways not shown in the original show. It could be a strained relationship or a very close - knit one depending on the writer's take.
A fanfic that stands out is 'OC's Impact on Callen'. This one focuses on how the OC changes Callen's perspective and his way of handling cases. The OC is portrayed as a strong - willed and intelligent character, and the way they interact with Callen is both engaging and believable. It also has some great action scenes that are typical of the NCIS LA style.
A good NCIS LA Max Gentry OC fanfic should have a well - developed OC. The character should have unique traits, goals, and a backstory that makes them fit into the NCIS LA universe. For example, if the OC is a hacker, there should be a reason for their skills.
In fanfic, she could also be a bit of a rebel. Tired of living in her father's shadow, she might try to carve out her own identity in the NCIS world. This could lead to some interesting conflicts, both with her father and with the other characters in the story.
One possible storyline could be her following in her father's footsteps in the world of NCIS. She might start as an intern or a new recruit, facing challenges and making friends along the way. Another could be a story where she gets involved in a mystery that is somehow related to her father's past cases, using her own skills and knowledge to solve it.