: Do not enter the room immediately. Stay behind the doorway for cover.
To unlock this achievement (Gold Trophy / 100 Gamer Score), you must clear the common room in on Veteran difficulty without taking any damage.
: Your teammates are invincible; let them push forward and finish off any stragglers while you stay safely behind. call-of-duty-ghosts
The phrase "provide an piece" regarding most likely refers to the "Piece of Cake" achievement/trophy, which is earned by completing a specific objective during the campaign . "Piece of Cake" Achievement Guide
: Immediately after breaching the common room door with your squad. Strategy : : Do not enter the room immediately
: Save all your flashbangs and frag grenades specifically for this room.
: Throw everything you have into the room to clear out as many enemies as possible before they can react. : Your teammates are invincible; let them push
If you are looking for other "pieces" of the game's completion requirements, you might also be interested in:
