Oh, I remember, lol. I only got two ranked perfections before, one was in SWAT when I was on an alternate account helping to boost my friends rank up, and the other was in Squad Battle and I was just on the warthog gunning people down the entire game, lol. All of my other ones were in Big Team Battle pretty much from what I remember. I probably still have a bunch of my clips saved on my Xbox, but I don't have my Halo 3 disc anymore to recover them :(

Also, a BR is the only weapon you need :P Probably my all time favorite gun in a multiplayer.