Oh alright well here is more info for other armor and weapons .http://halocostuming.wikia.com/wiki/Pepakura_File_Index here and It is the Mark VI: normal detail parts and It has some other armor If yuo want more try combing throught the forum and they are marked clearly as "Official _____". Hope this helps and If you can't find what you need try digging throught 4shared.com or I can see if I have the file from here or 4shared.
Thats why you scale them, I really dont scale at all. All I do is imagine if it will fit me lol
But if you need help on scaling, you should check Xtreme Tactics Scaling tutorial.
Just look for it in the search bar and it should pop up