Some players look for "pieces" of code (scripts) to enable infinite health or ammo. These are often loaded as a .xex plugin or via a trainer menu found on Nexus Mods or Se7enSins.
Modded consoles often require manual installation of Title Updates to enable DLC or fix bugs. You can usually download these directly through the Aurora Dashboard interface or from sites like XboxUnity . Army of Two [Jtag/RGH]
If you are looking for specific map packs or "extra pieces" of content, these must be placed in the Content\0000000000000000\45410842\00000002\ folder on your internal hard drive. Some players look for "pieces" of code (scripts)