True first person

Ok I’m making a game that has is true first person, but I ran into a problem, I’m not a expert in using the engine so I don’t know much but I would like help when it comes to adding and using and aiming a gun or melee weapon in true first person

you need to specify the problem you’re having. be very specific

I agree with thankstipscom.
What do you call “True first person”?
What kind of problem are you exactly stuck into?
What have you already done?

You can use for now the first Person Character provided by creating a new FirstPerson project, and begin to test things with it (things like look how it works, how it uses the gun and its animations, how it spawns projectiles, etc.)

I think discover those things by yourself might be greatly useful for you to know how to use the engine, and eventually ask for help when you don’t understand something specific.

The problem really is being able to aim down the sights in true first person

Maybe I understand what do you mean. You want to know if possible to use full body and the respective animation to interact in 1st person. Like the animation pack that you can take for free from marketplace for a 1st person shooter game where you had full body and not only arms like in starter 1st person project.
If you mean this, it mast not be a problem to use the full body in 1st person because you can create in character blueprint a component called Spring Arm that you can attach to the head bone and move the camera little more in front of this Arm so your camera didn`t collide with the head mesh.