this happened to me when i got the triple kill acheivement at 1005 it seems when your gamer score goes up you lose it and then you have to get three more achievements to get it back ...... vidmasters don't seem to affect it i got 7 on 7 monday didnt go away so..... my score is now 1125 47 achievements
Depends on your definition of cool. It is an opinion.
No all 1000 need to be on halo 3
Yes, if u get marathon man as the first couple of achievements, sometimes it might give u security and u don't need all original achievements for katana or security helmet! That is all
You must earn 1000gamer points from Halo 3 (on it's own) this will also get you the Katana. So basically just try and get all the achievements, completing the game on all the difficulties is a good start.
yes you get the marathon helmet and body piece and you get the katana bodypiece
well I got my security shoulders when I reached the gamescore of 850. That sucks I know but I got Katana and security helmet at the same time at the gamescore of 980...pretty glitchy eh? My friend got them when he reached 450. Security shoulders are known to be really glitchy :D
well there is no "body" you may be thinking of Katana. To get it you have to get achievements
Get 1000 gamerscore for specifically Halo 3. You also unlock the Security Helmet.
You have the newer achievements, you need 900 from the old achievements then it will never glitch up, same with katana and security helm.
1000 gamerpoints gives you the katana, not the security armour.
No, i believe it is 750, 1000 is for the Katana body piece if i remember correctly.
katana, defiantly katana and it is sharper