I have a story that I want to serialize here soon, but it does have a couple of F-bombs. There is no graphic sexuality and while there's action/fighting, the violence isn't gory or overly descriptive. If it were a movie, I'd feel like it'd be a hard PG13 or maybe a very mild R purely because there's more than one F-bomb, but aside from the occasional profanity, it's about on par with the Marvel movies with language/blood/violence.
Am I going to have to use the mature tag because of the profanity or is extreme language alone permitted as long as it's not South Park levels of excessive?