Combat Extended Promethium, We would like to show you a description here but the site won’t allow us. I checked the refinery for wood > chemfuel but it didn't have a promethium option. Holla. Been stuck on this for a while, how do I make promethium? I tried to make some molotovs, but they required promethium (which I assumed was a fuel substance). Also looked for "incendary" or "flamethrower fuel". How to craft/obtain FSX and promethium for combat extended crafting? Holla. I checked in machining table, loading bench, drug lab, biofuel refinery, smelter, crematorium, crafting spot, brewery, fabrication bench, stove. FSX is used the create a variety of explosives, while Promethium is generally used to make incendiary weapons. Help please? Feb 8, 2019 · They are two resources added by Combat Extended required to create various weapons and specialized kinds of ammunition. Combat Extended has two types of fires: vanilla and the special "promethium". s4e, pus0dw, xuors, ahv6, emedde, smwa, 7gbl, 8zxp, uydw, m41fdmf,