How to give a reference to a player

Godot Version

Godot_V.4.3

Question

I want to give a reference to a player, i tried load,preload and i tried get_tree().get_first_node_in_group and it didnt worked, i think its because i already added the group for something else.Please Help

This is a bit vague.
What are you passing the reference to? And what do you expect to be done with the player reference?

I am trying to give a refrence to on of the AnimatedSprite2D called Tank2 wich is like npc, to the another AnimatedSprite2D called bullet

If you instantiate the bullet, you can pass a reference to it when you create the instance.
Similar to this:

var spawned_object = object_to_spawn.instantiate()
spawned_object.player_reference = player