Help needed i need someone help

hello everyone i have some issues with my game first i’m a one of beginners of gdevelop , so my problem is how to control player gun. shoot up or middle or any place you want to shoot .
second problem is the bullet is not come out in the place that i choice .
this my project

i hope someone fix this problem and tell me whats wrong whit my project .
thenk you guys and im sorry about my english .

your bullets are created under the floor
1-add bullet behavior to your bullet

2-Correct it by modifying the point of origin of the bullet.

and your modified project to shoot diagonally. but I tell you there must be better options for the same result

first link is not work