I am curious as about the first couple of scenarios in the Campaign. I know that the tech tree is somewhat streamlined in the beginning. How come, when my espionage says my enemy has Laser I, II, III etc., the only defense I am allowed to research is Armor? Wouldn't shields be the more logical choice? I'm not a dev or a modder. I just play because it is fun. This just does not make sense to me. I am guessing there is a perfectly logical explanation for this.