Buildings are broken down into 3 categories: Head Quarters, Technology, and Supply. Headquarters are used to increase the money accrual rate, the ammo and oil supply, and to increase the unit limit. Technology based buildings will increase ammo, oil, or both, and allow for the upgrade to various technologies. Supply buildings will increase the rate of ammo and oil, or both in the case of a supply depot.

During the onset of a game, it is important to choose your buildings wisely. Many new players build all of their Technology buildings first. This is the absolute worst thing a player could do in online play. Always build HQs first, and then build Technology buildings based on the needs of your choice of a build order (see Country builds below). In other words, if you want to build Mortar Infantry, or Artillery Mechs/Tanks, then you will need an Artillery Brigade. Do not build a Technology building until you absolutely need it. It’s a waste of money that could otherwise be spent on units, or on another HQ.

Another mistake often made by newer players is building an Engineering Bay so they can produce an Engineer to build bunkers and artillery. This is a complete and absolute waste of money and immediately places you at a disadvantage with your opponent. First, if you drop the Engineering Bay, you just lost money that you could use towards another HQ, which would help increase your overall money accrual rate (see Money Generation). Second, players that build an Engineering Bay, typically do so in order to build bunkers and artillery, both of which are ‘defensive’ measures only. Once you construct these units, you can not move them to attack, they can only defend. This means, that while they may repel an approaching army, they will never be able to destroy it. If you feel that you need a defense, then build regular units, and let them get entrenched in the locations where the bunkers and artillery would be positioned. This will be nearly as effective as a bunker/artillery, and allow you to use the unit to attack and finish off your opponent’s army.