She brings up killing caruso if you give her the DNA sample, but she says she needs caruso to finish the virus, then she'll kill him. I agree it definitely should be explored.
I get why they added the kill switch for the story but MAAAAN I hate it!! Because now if you want to remake this mission with the Constant a target as well? It's too easy. You can even pistol snipe him from the dock, the default start of the map. He won't get found. Or you can just get ahold of the kill switch, it's just a free auto kill, too easy too boring. So now if you want it to be a decent challenge you have to make it a melee kill. LAAAAME.
