Remnant: From the Ashes
50 Achievements
1,500
64-80h
Ready For Action
Craft a weapon using material from a defeated world boss
30
21.71%
How to unlock the Ready For Action achievement in Remnant: From the Ashes - Definitive Guide
Once you defeat Singe you will get a Blazing Heart in your inventory items under the materials tab. Once you get that head back to Ward 13 and talk to the sassy mod lady. You will then be able to craft it from her.
After that head to the merchant guy who sells the guns and upgrades them. Simply upgrade it as far as you can. Now chances are you did this right away and can't get it all the way. You will need plenty of iron, lumenite crystals, and forged iron. Forged iron will be dropped later on by the enemies so don't worry there. Once you get enough of it you will be able to upgrade it to level five for the achievement.
Just on a side note there will be plenty of other world bosses who drop the items to craft more in case your campaign is different. As well as some mini bosses as well. Which should count since the game is glitchy enough. If not let me know and I will remove this little add-on.
You will get a specific material from every world boss upon defeating it. Some of them even have two possible materials depending on how you kill them, however you simply need to defeat any world boss and then use the material acquired to craft a weapon. The first world boss you will defeat will either be 'Singe' or 'The Ent'.
If you fight Singe you will acquire the 'Blazing heart' if you defeat it without destroying it's tail, or the 'Dragon Links' if you destroy it's tail before killing it. If you fight The Ent you will acquire the 'Spore Gland' if you kill it without destroying it's legs or the 'Twisted Heart' if you destory it's legs before killing it.
Whichever boss you get and however you defeat it, take the material you acquire back to Ward 13 and speak to McCabe to craft a weapon with the material and 7 Lumenite Crystals to unlock this achievement.