2. I hope I will explain it better now. If you won't understand I can try again.
Probem: Player character shoots lower from itself.
Here bullet (number 1 on image) is lower then the player character. When you are looking for opponents on the right side of screen, it becomes a bit difficult to aim player character correctly. My bullets were usually flying lower than I expected.
So my suggestion is to make bullets fly from character's center (point 2 on image)
P. S. In tutorial he shoots from center , but in game it's lower