I need copper for crafting. I've found it in some random caves, but usually only find about one copper per location. Are there specific maps/missions that have more caves and are more reliable for finding copper? Is copper available inside other items or by other methods?
The best places to cop some copper
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Best Answer
Copper can be found in any "cave-like" area where rocks could be on the walls or ceiling. This includes mines, actual caves, and even sometimes just "quarries". Copper ore has a chance of replacing any of these rocks. The same goes for Quartz, Rough Ore, and Coal.
Caves are most common in forest zones (compared to suburbs, city, and industrial zones) since they have a chance of appearing in the main center area. However, every map type usually has a few caves on the outside edges of the map (which are forest-based).
Occasionally, copper ore will be given as a reward for completing a mission. Be sure to check the mission rewards ahead of time so you know what you're getting. Accomplishing bonus objectives (staying under the build limit, finishing the mission within the speed run time limit, etc) will earn you more resources in the form of higher level loot chests.
Finally, encampments occasionally give a copper ore as a rewards as well. You can tell what kind of rewards an encampment will give by hovering your reticle over the encampment when you're close. If the reward symbol is a piece of copper ore, you will receive 4 pieces of ore.
All of the info above also applies to silver ore (the tier 2 ore) and malachite (the tier 3 ore).