This is a really good idea, but it looks bad (ammo boxes and health kits flying around and going through walls...)

Plus, what others said in the youtube video comments: This could be bad for your teammates because you'd steal the ammo from them.

I think this would be really cool if it had a cooldown and it only could attract 1 ammo/health each time. Like, you point it at an ammo box, press the button once, then the ammo box jumps directly at you and you recieve it. After that, wait like 1 second to be able to use it again. Also you need to be able to see the item you want to attract for it to work.