Since it's a Twilight fanfic with 'under the gun' in the title, it could mean that there is a sense of time running out or a character being forced into a situation. It might be about a conflict that is quickly escalating within the Twilight setting. It could be about a character's secret being on the verge of being exposed and they are 'under the gun' to deal with the consequences. Or it could be a new take on the love triangle where the characters are 'under the gun' to make their relationship choices in a more extreme situation than in the original books.
You could start by looking on popular fanfic websites such as Archive of Our Own (AO3). They have a large collection of Twilight fanfics, and you might be able to find it there by using the search function.
Often, the unique feature is the added tension. In regular Twilight, there are set threats like the Volturi. But in 'under the gun twilight fanfiction', new and unexpected threats can be introduced, like a natural disaster that affects the vampires and humans differently. This creates a whole new dynamic.
One great 'under the gun twilight fanfiction' could be the one where it focuses on the characters' inner struggles during a crisis. It might show how Bella copes with a dangerous situation in Forks that is not directly related to the vampires or werewolves at first but still ties in with the overall Twilight atmosphere.
It could be about a character in the Twilight universe being under the spell of another. Maybe it's a love spell or a dark magic spell that alters the relationships and events in the story.
I'm not entirely sure specifically as 'bxb' usually means boy x boy in fanfic terms, but 'gun play' in a general fanfic context might involve some sort of fictional scenario where guns are part of the story in relation to the boy x boy relationship. However, it could also be interpreted in many different ways depending on the author's creativity.
It could be a fan - made story about a wife within the Twilight universe. Maybe it focuses on a character's wife and her experiences in the world of vampires, werewolves, and the complex relationships in Twilight.
I'm not sure specifically as there could be many different Twilight fanfics titled or related to 'the list'. It might be a fanfic that focuses on a list within the Twilight universe, like a list of vampires, a list of tasks for a character, or something similar.
I'm not entirely sure specifically what 'faking it twilight fanfic' is about without reading it. But generally, in Twilight fanfic, it could be about characters from Twilight faking something. Maybe a character fakes being a vampire or a werewolf, or fakes their feelings for another character, all within the context of the Twilight universe.
Well, 'twilight ride fanfic' might be a fan - created story related to some existing work. It could center around a character or group of characters who embark on a ride at twilight. This could be in a fantasy setting, like a magical forest ride where they meet strange creatures. Or it could be a more down - to - earth story about a simple bike ride during the beautiful twilight hours, with the characters reflecting on their lives.
Since 'awish twilight fanfic' is a rather general term, it could be a story that explores the backstories of the characters in more depth. For example, it could delve into the past of Edward before he met Bella, or the history of the vampire clans in a way that wasn't fully explored in the original books or movies. It might also introduce new supernatural elements or reimagine the existing ones in a creative way.