You'll want to get a JTAG/RGH/R-JTAG. They all have different parts but all do the same things with a few exceptions. Also, for Reach you'll want to use the tool known as Assembly. Going further, you should buy Premium and check out my Halo Series Pre-modded files threadok so a friend and I are looking at making a halo reach series and some of the .map mods that add like, pelicans and **** are pretty cool looking so, what should i get? and whats the difference?