This is a great feature and makes sense. Research it once and move on to new things. While the technology tree isn't extremely deep in Seven Kingdoms II , there is still a need for research. Rest assured, research completed in early missions will save you valuable time later when the odds against you increase. As the Fryhtans, research is a bit different.
Technology is bought flat out, no research time required.
Each Fryhtan species has it's own set of technology. Spying The inclusion of spies into a RTS at this level is absolutely fantastic. Well trained spies can accomplish some amazing feats and deliver knock-out blows to your enemy without a drop of blood being spilled. Your blood, that is, on the battlefield. Sneak a spy into an enemy's fort and several options become available to you based on your spy's skill level.