I am not planning on beating V Hard until level 80 and after I find my Yamato I'll need to progress to more weapons. I also found D Parts on my first V Hard Garanz in Spaceship with an akin drop rate of 1/73 so chances are I'll get it some time. Thanks whiteninja, I can name some people who would think I'm crazy to do the mission over and over especially with the long cut scene with the hunter at the beginning.
You do realize that you can't equip a Yamato on either of those characters, don't you?
The Inferno Bazooka is next to worthless for rangers, though. I piped an Al Rappy with my Greenill and that's what I got... I have about 4 of them now. The only use one could possibly have for that weapon is on a hunter, simply for the variety of using a powerful firing weapon. Just get yourself a good rifle and a shot (start a hunter with a Skyly ID and see how many Visk/Wals/Justy rifles you find... I find more rifles with my HUcast then I find swords, and it's annoying...

).
I dislike Rifles, and yes I know I cannot equip Yamatoes, for a friend. Rifles are cheap and suck A LOT of fun out of the game for me.
EDIT: got my Inferno Bazooka in Ult Forest, Barble.