Confederate Protocols are acquired automatically after a structure is completed. Upgrades are free, but have long build times, and are "built" from the structure that generates them.
A small number of barrage balloons are tethered across a wide area in a simple pattern. Any aircraft which flies into one of the thick cables holding up the balloon will find itself rapidly falling to earth as the tungsten wires slice apart their wings and structure. A barrage balloon is multi-use, but will eventually degrade. Though invisible to aircraft, ground units can easily detect and sever the cables, causing the balloon to float away harmlessly.
Tunnel Rats suddenly make their presence known on the field, at higher levels supported by a Sidewinder. This ambush can throw aside enemy forces they emerge beneath with its force. Upgradeable.
Designate a small group of ground vehicles as targets of the Beatdown. While under the effect, they have reduced damage, making them easy prey for your armoured legions. For added hilarity, the other player has no way of knowing a unit is under the effect if they fail to see the original marking. Upgradeable.
Targetted on an area, any stealth detectors affected temporarily lose their stealth detecting properties. Useful for sneaking past defenses or preventing a base from being spotted.