First of all, love the last name you got there. Secondly, you don't need a tracking launcher, Crota hardly moves. These people that say otherwise cant aim under pressure. I have G-horn, Hunger and a One Way Ticket that has all the perks as hunger just no tracking and it works just as well as the other two. Aim for center mass and if he moves you still hit him or just lead him a bit.
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Sometimes he actually moves... slow rockets with no tracking can be an hindrance. Note that I have gjallahorn, and I still have to remind the swordbearer to adjust for distance, depending where your strategy says you should shoot from (often we don't often get out of the room right after the ogre in level 30 run... and the distance difference to being in front of the window IS appreciable !)