Ok one you shouldn't use a rocket launcher on lamps unless you are on top of a rock at the end. It's just asking yourself to get killed. Plus Gjallarhorn is just better. Wolfpack rounds and tracking make it the best weapon in the game and is the only weapon you should use on Corta. The hunger is the only exception because it's met for the raid. Anything else is like using no land beyond compared to Gjallarhorn.