Or something as mundane as cleaning up and fixing something that's been out in the weather for 20 years so it doesn't look shabby at the front gate of their base.
If they were doing that they would say so. In fact if they were smart they would say that regardless of the true story. The fact they aren't saying that means they're either stupid or playing 4D chess. I know which I'd bet on.
I don’t know anything but I can’t imagine they need specialists if it’s just a cosmetics job for a monument.