Information: This will unlock Sargent Johnson for use in Firefight. This unlock is tested and working! This only works for the Xbox 360 and requires you have a Xbox 360 hard drive / Memory card. Instructions: Download XPort360 or use Xplorer360 Extract the folder 4D530877 from the download zip file Halo 3 ODST SGT Johnson unlock.zip (Picture) Place the folder 4D530877 into Content/0000000000000000/ on your hard drive (Picture) Should now look something like this... (Picture) Plug your 360 hard drive back into your Xbox 360 and load up Halo 3 ODST Once at the menu go to settings, go right and change your appearance to Johnson. Simples... ENJOY!!