You worked with Leon for a few years right after Raccoon incident.Then you were sent alone in a mission,something happened.Something you never told anyone,and after that you retired.It's been years since.You kept in contact but still distanced yourself from them

Now you were in a beach house you rented for vacantion.You heard the door,next thing was Chris and Leon coming to you "I know you don't wanna hear about it,but I need you for this.What do you say?Like the old times,one last mission