Nemo would not leave him here, not like this, not now. The core was at more than a disadvantage, like this... if he didn't take it with him, it was helpless, and doomed. Nemo didn't even try to shield himself, he only focused, breath caught in his throat, until he'd ripped that core free, whole, come what damage he may have to take. Then, it was time to flee. He'd take to the air, his eyes a glowing and fearsome red, as emotionless as any machina bearing down on its prey. His mind was utterly dedicated to the escape now, the core held close. The stealth drones had scouted him a path, and his missile drones gave him cover fire, for what it was worth in the situation.
He didn't go through the same escape the others did. He shot up through the once parking deck, scrambled behind cover and kept moving, going up the ramps from level to level and eventually shooting out through one of the levels like a bullet shot from a gun, diving and using the speed to rocket himself away from the area. Speed was his strength, and he'd allow nothing to keep up. He shot away from his destination, not allowing them to follow them nor to predict his destination. He'd alter his course when he was in the clear, and make his way home... assuming everything went well.