Okay. well this is a mining facility on a remote asteroid, so maybe he stowed away on some ship or something. Just a suggestion. 

What I've decided to do regarding the collective is I'm controlling the majority of them, but Collective characters that have bearing on your background I'm letting each individual control. For example, She-wolf has a Sentinel who is currently her captor, so I decided she would know best how to handle that specific member of the collective.

You can also create Collective characters to make things more interesting and kind of put twists in the plot, but for the sake of moving the story along, I'm controlling the majority. In general, you can control most generic Collective, but the main antagonists and such I'm going to be playing.