WASD to move. Mouse to aim and shoot. Most people when they start out don't know how to implement velocity movement. I, however, have had a couple years of experience with stuff like this, and I knew how to implement velocity movement well before I created my account.
Just a project I made. 14 views, wow im starting to get noticed I'm officially a scratcher now! Awesome! If only I knew how to make online projects but there's probably some engines out there