Totally agree with Lone Lycan's analysis on all of this.

I've installed these units. I hunt NPCs and attack is king. Even though it's a lot of space the extra attack is worth it for me. Getting extra attack is really expensive in upkeep. I've got light QCB tech researched (for the base) but have only installed 6 theacron cannons and 2 light ones. I'm excavateur.

I've uninstalled other cloak and scan modules to get the 60 space I need. This isn't a great module at all but 80 extra attack would cost too much in upkeep.