Catastrat B.O [Best Eco]

Overview

This guide will tell you the most efficient way of boosting your economy.

Build Order

1. Build Refinery closest to your main oil field
2. When it is finished, sell it ASAP and build a new Refinery on the same spot.
3. Barracks as close to your natural expansion as possible
4. Motor Pool as close to your natural expansion as possible (When finished build a Harvester)
5. 2nd Refinery @Natural Expansion (While the harvester being built)
6. Power
7. Tech Lab
8. Spam Motor Pools for sweet tank spam

Best saturation for one oil field is 2 harvesters and 1 refinery as close to the oil field as possible.
This is the best economical start you can have. See GameReplays 8-Bit Armies economical analysis.

Thanks to Netput for telling me about the refinery trick.