This Prototype Base building allows the production of prototype units like the Maus and the Katyusha. This building is very valuable and can change a course of a battle, so don't let it fall in the wrong hands. Protect it at all costs.
Strategies and tactics
This building can make very powerful units, but at a cost.
These buildings come at different prices. The Soviet Union has the most expensive base at $140. Germany's is the cheapest at $100.
This building can produce advanced and super heavy tanks, AA, artillery, and armored reconnaissance.
With Italy its a good idea to make a prototype base right away because their armour and tanks are all below their counterparts.