Cursed teamwork
On the Cursed ship, when Brock had revealed to the group that Quinn would be talking to Eno right now, they didn't take that as a good sign. Instead, Logan and Sam were thinking along the same lines.
They were worried. Richard Eno wasn't someone they could fully trust yet despite what Logan's parents told him, or believe that he was the great scientist that helped out the human race in times of need. There were just too many secrets for things to go smoothly.
After learning of this, Sam suggested that they keep a close eye on Quinn and find out where he was. They knew the schedule of the military and what planet they would be on, and because they had an inkling that Eno would try something, they were ready having organised a few things beforehand.
Of course, as soon as the communication devices were down and the military had put out a report for anyone in the nearby area to be careful of the Planet Caladi, they were already one step ahead of everyone else.