Resources

Tap on the map icon at the bottom-left corner of the screen to search for the resource tiles that are scattered around the world map which drop extra resources and specific Materials. The best strategy is to target the higher-level resource tiles as resource and material collection from these will be faster than low level ones. For your Troops to gather resources and materials from a resource tile it must be unoccupied. When your troops reach their load capacity they will return to base. There is no limit to the amount of different resource buildings you can build at your base so it is recommended you build as many as you can afford in equal numbers. Having plenty of resource buildings will enable you to complete rate Missions faster for bonus rewards.

Quarry:

Gunpowder, Glass, Lead

Farm:

Rope, Wood, Leather

Oil Well:

Rubber, Aluminum

Iron Mine:

Titanium, Steel, Carbon Fiber