Ok i was editing a certain weapon and its all done. but then i realized, when i get near to pick it up, it says if i want to pick up an SMG and its a battle rifle and same thing with the icon it shows a pistol instead of a battle rifle. what im asking is where in the HUD do i go to edit what bitmap and sequence it uses for the battle rifle.

its at the bottom of the weapon hud interface

Yes i know that but it doesn't tell me which bitmap i want to use and so far i can only get standard halo icons working. i at least need to know where the bitmap is located so i can choose a better sequence.

you need to look at the custom icon sheet you compiled. count down starting at 0. whatever number your icon is will be what you put in sequence index.
incase you didnt know, you need to have all of the icons in one bitmap tag. look up my tutorial on custom pickup icons. its on this site

I already have a bitmap sheet done i just need to locate it and set the sequence :P