I'm not really a new player, but I quit a while ago (before the missions came out) for a reason completely irrelevant to this thread and came back recently. I decided to go through and do some of the missions, but I sold the rewards since they were 1 star and I didn't need them. However, when I got to the mission on Rank 2-2 "Time to Get Crafty" I was unable to do it since I had sold the recipes from the previous mission, "Alchemy for Beginners" already. I bought a Frost Gun recipe from the Auction House to use and accepted it from my mail, but it didn't show up as usable in the mission. I tried learning the recipe, but that didn't work either. What am I doing wrong? Do I need both recipes for them to show up as usable for the mission? Can I only do the mission with the exact recipes from the last mission? If the last is true, what do I do now?
That mission requires the weapons, not the recipes. I doubt the game can tell if you bought or crafted them, but you do need the actual weapons, not just the recipes.