Originally Posted by Eugerome

As it stands now I can see the barrels from a mile away and know what to expect.

But the NPCs don't. Thats a problem. If they would simply avoid the barrels the problem would be smaller. Just have them find a route around them or set them on fire from a great distance. The explosives within could be used in crafting to build smaller mines that can be hidden on the field of expected battles

I sometimes use thought experiments. I don't necessarily believe in every idea I post for discussion on this forum