It depends on what you mean because the word "marksman" has a variety of different meanings. In some shooting sports, marksman is one of the lowest rankings, ranking below expert, master, grandmaster, etc.
If you mean, how do you become a professional shooter, it depends on who you want to shoot for. The first step in most cases, it to start winning shooting matches so you can have something to offer.
what qualifications do you need to become a health visitor
you have to be male
what qualifications do yu need to become a driver instructor
qualifications to be a grond hostess sri lanka
You don't need to be in a city to level up skills.
Learn how to spell...
You don't.
gcses
a PHD in psychology.
GCSE
You need talent to become an actor
There are 3 levels of qualifications in the Navy. Marksman, Sharpshooter, and Expert.