To some extent. Seal Team takes elements from actual operations and incorporates them into the storyline, but it also adds fictional elements for dramatic effect.
The settings are usually related to military bases or areas where the SEALs operate. There are often elements of danger and high - stakes missions which add excitement to the story. For instance, the SEAL might be on a top - secret mission while trying to protect his relationship. The romance aspect is also intense. The characters fall in love quickly or have a slow - burn relationship. It's about two people from different worlds (the military and civilian) coming together. And there's usually a happy ending where the love between the SEAL and his partner overcomes all obstacles.
One idea could be that they discover they are going to be parents unexpectedly and have to deal with the reactions of their friends and family. It could be a comical situation as they are both rather unconventional characters. For example, Grim might be shocked and initially try to find a way to reverse it, but then slowly warm up to the idea of being an 'uncle' of sorts.
Another great Seal Team fanfiction idea could revolve around a time - travel plot. The team gets sent back in time to a crucial moment in military history and has to use their modern skills and knowledge to change the outcome of a battle or prevent a major disaster.
Some Seal Team fanfics that are worth reading are the ones that delve into the backstories of the characters. Maybe a fanfic that tells us how a character joined the SEALs in the first place. Fanfics that include detailed descriptions of the military tactics and equipment used in the show are also quite engaging. They can give you a deeper understanding of the world of Seal Team.