1000 gamerpoints gives you the katana, not the security armour.
get a 1000 gamerpoints and 49 achievements. alot of times it glitches and you get it before that. u just need to be close to a 1000 gamerscore points.
If you unlock 1000 gamerscore with those achievements then yes you can unlock the katana body Armour.
You need all the Halo 3 Achievmentswhich is 1000/1000 Gamerscore for Halo Katana.
There are two ways to get the "Katana" sword in Halo 3: Get 1,000 Gamerpoints in Halo 3 or get 49 out of 79 achievements in Halo 3. I recommend that you finish campaign on Legenday first (so you already have a lot of gamerpoints. It is frustrating, but it is worth it.) Then, just play the Legendary and Mythic Map Pack and get the Achievements there (most are about 25Gs but some are 50Gs.) Good luck! You can Also get it by getting 50 EXP points in one playlist on Matchmaking (Online)
simple, get 1000 halo 3 gamer points. how i got my katana body.
people say that there are glitches for the katana but they are lying you cannot equip it
To acquire the "Katana" armor permutation chest-piece, you must unlock all Xbox 360 achievements, or receive 1000 Gamer Score from other achievements (Mythic Map Pack I and II, Heroic Map Pack, etc.)
You have to get 1000 gamer score.
well first you have to have xbox live and win a bunch of matches. i have all the armor b you get katana by getting 1000 gamerpoints in halo 3 same with security helmet. you get haybusa by finding all the skulls. eod by completing the campaign on legendary markv by reaching sergent in xboxlive. same with odst. and that's all i know
you need 49+ achievements and 1000 gamerscore off Halo3
suzuki katana gs 1000