Guys Martin had Top Billing on "Bad Boys" not Will. Martin got the higher salary as well because he was the Writer and Co-Creator of his own show. "Fresh Prince" was bigger in ratings but Will did not create or write on the show at that time like Martin did for his. Also Will's acting at that time wasn't that great though he grew into a strong Actor. Martin charisma alone was getting him roles left and right. It was Martin that recommended to bring Will on and Will said he's forever grateful because "Bad Boys" literally got him the deals for "independence Day" and "Men in Black" after it blew. Martin was in much more movies at the point ("House Party 1 & 2", "Boomerang", "Do The Right Thing", "Talkin Dirty after Dark" and his standup "You So Crazy"). Yes Will was known for music but not really in the acting department and only had a few movies at that point in supporting roles ("Where the day Takes You", "Six Degrees of Separation" and "Made in America").
By the time you got to "Bad Boys II", Will had exploded at the box office and they both negotiated 20 Million salary apiece and shared Co-Starring Billing (Though Martin name was first again). Will is getting more for "Bad Boys For Life" because he's an executive producer as well and it's coming out on his "Overbrook" studio. I still think Martin probably got his 15-20 Million still to come back and Will is still in his 20+ Million range. But "Bad Boys For Life" is the 1st movie that Will has officially Top Billing over Martin though again their Co-Starring. Check out this video from their 1st week of shooting. Also people need to let Martin live. He's in his Mid-50's, so what he gained a little weight. He's not even that big for his age. I remember when Part 2 dropped people were saying he got bigger too. It's just we are so used to Martin's image from the 90's where he was super skinny. It's 25 years later. Will of course has stayed in shape his whole career.
Based on the story synopsis, Marcus is now retired and a Private Detective. This lines up with the previous films as his Wife Teresa has been trying to get him to retire for 2 straight movies basically. Remember, Marcus unlike Mike is a family man with 3 Kids. They are all probably college age now (Wonder is his daughter still with Reggie, lol). From what I can tell, Mike obviously pulls a rusty Marcus out of retirement for one last ride.
OK, I've gotten some new info that I was slightly off with the synopsis. Martin isn't a private Detective but a Private Inspector. This is like a desk job on the force. Him and Will aren't retired yet but after this Job, Martin says that he wants to officially retire. There is also something about a Romanian Mob Boss seeking revenge for the death of his Brother. The first Bad Guy Fuchet was French. Part 2 it was Johnny Tapia was Cuban. The 3 young cops singing the song at the end (Vanessa Hudgens) of the trailer are apart of a Police Task Force. But yes overall Marcus is not in the field doing action anymore. He's a regular desk cop in this version before Will ask him to go on this last ride.
