Seival wrote...
(1) I think the point was to destroy the reserch, not Sanctuary itself. I doubt the Catalist wanted the facility as a resource. It has millions of Reaper capital ships that can produce hasks much faster.
(2) United Fleet forces will notice the problem and try to investigate. And they will have to fight left Reaper ground forces. Which may cause additional casualties. Catalist just "loudly" disabled the Sanctualy and left a trap there.
(3) They were close to killing the Lawson themselves. Catalist maybe thought that noone will want to investigate the Sanctually so soon, or... Lawson was killed anyway. So the Catalist's plan worked anyway.
(4) I think that clues of what happened were not important. The point was to prevent United Fleet forces to use the research to slow down the Reaper ground forces. United Fleet forces will just have no time to reconstruct the research, or more likely will not want to after they will see what happened in the Sanctuary.
1. Yet they DID destroy Sanctuary. They wouldn't need it as a resource, but they will gain nothing by destroy it. They could have simply take all the cerberus agents, and tell them to bring everything with them, and they would all fly away. Destroying Sanctuary will have only drawed unwanted attention.
2. If they took all the research, why there will be a need to kill anyone? People will come, see nothing, and will just go away. Even if they would have discovered what happened, there was nothing to do about it. There was not really a reason to keep the harvested there. The reapers would have been better off with the harvested with them than in Sanctuary.
3. Yet they didn't kill him. There were many harvested in the way, MANY harvested outside Lawson's door. No one killed him, or tried. They protected him, more like. And they had no reason to protect him if the reapers controlled them. Besides, the reapers didn't know Shepard will come. And I'm pretty sure there is a way for Lawson not to be killed. So the reapers will not get to kill him, and he can leak the story about Sanctuary long befroe the reapers will find him.It would be too dengerous for the catalyst to just leave everything for Shepard.
4. But the clues to what happened ARE important. It's enough to find one of the terminals, and discover what happened on the base. And if someone that is as power hungry as TIM, he'll want to do the exact same thing. He will try to control. Sure, the odds that he will sucseed are very low, but what if the idea will go to someone who CAN do it? Let's say, it will slip out to a salarian scintist. They will surely be able to do a lot. There is a very big chance for the salarians to control. Or even another powerfull human. Some harvested here and there would not really stop anyone. Bringing some spectres, or maybe even stronger soldiers, and they will take of the job quickly enough. If they truly wanted to keep the base from anyone, they would have at least kept a baby reaper there. They didn't.
If the reapers would not want people to know about the idea of control other than the indoc people, they would have cleaned the place. They didn't. Which means, that there are also more information about the research itself.