In the campaign the only weapon tech I can research is beam weapons and the only defense I can research is armor plating. This wouldn't be too irritating if the baddies weren't also using beam weapons, rendering my armor research nearly useless. I'm still early in the campaign (darned supply issues in my area) and I'm just curious if this is a deliberate limit to early campaign missions, or if we are intended to be able to use all weapons/armors from the start.