please help please I have problem

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+1 vote

First, the bullet does not hit the target from a distance
Second, how to make several weapons and change and pick them up
Third, how to make an arrow that is visible after firing until it hits the target. For example, suppose you shoot a bow. When firing, the arrow is visible until it hits the target and is visible along the way.
Please explain
https://drive.google.com/file/d/1GfcQ-s2aH22lNokcfItrfx1sQzvalC2q/view?usp=drivesdk

in Engine by (30 points)

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