Badge of Honor

Find all the BSAA Emblems scattered throughout the game's levels. Obtaining it gains the player 30 Gamerscores.

There are 30 Emblems total in the game, they are small shiny-blue emblems mostly found in enclosed ares or otherwise inaccessible, thus requiring the use of a great amount (or just one, if you're good) of Grenades and Rockets. You can check what you are missing in the Chapter Select screen.

Trivia

 * Obtaining a set number of these can unlock some extras in the bonus menu.
 * Re-acquiring one is fruitless, you can shoot the same one as many times as you can and nothing changes.
 * Along with the achievement are some unlockables like costumes for Chris (S.T.A.R.S. - 25) and Sheva (Tribal - 30) or just figures.