Greg crept slowly through the jungle, following the map that appeared in his head as soon as he wished it. He still was puzzled but how and why it worked this way. But some hints made him calm down and throw the random thought aside for now.
It should have been connected with the nanochips that Marina invented. All the signs pointed precisely at that. First of all, the only thing that could link him to the computer was the blood that accidentally spilled on the board. So the strange content of it was just the thing that could explain his power over the suit and how he was able to get all the info from the lab at the same time. Maybe at some point in the fight with Ian, Greg accidentally fell on the semple that his sister left behind and got infected.