well there is no "body" you may be thinking of Katana. To get it you have to get achievements
You have to get 1,000 gamer score on Halo 3.
No, i believe it is 750, 1000 is for the Katana body piece if i remember correctly.
No all 1000 need to be on halo 3
you have to get 49+ acheivments
you have to get 49+ acheivments
no
To get security armor in Halo 3... all you have to do is get all of the original 49 achievements (you don't need the new mythic or legendary achievements).
LAG
you have to get 49+ acheivments
simple, get 1000 halo 3 gamer points. how i got my katana body.
Unlock all 49 achievements
play dont be a lazy gamer, cause if u get all of the achievments, u get security head and the katana body piece!!!