Martin had just pried the armored casing of the side of one of the turbines and was trying to find the right place to hit it. Even bypassing the casing these engines were massive, cutting at the side a bit wouldn't do much. It needed a serious explosion to be broken.

There was a presence he didn't quite recognize, although it was definitely a person he'd met before. It was the trail of destruction, even though quite stealthy, that betrayed who it was. Magnus! The monster was everything Martin needed right now: A distraction, a war machine, an ally, a bazooka!
With a precise throw Martin dropped a sharp slab of steel that he removed, it landed on the ground right in front of Magnus' nose, almost slicing it off. 
Martin waved at Magnus looking up. He pointed at the turbine's new weak spot, suggesting an angle and point of impact.
He then quickly started to crawl over to the second engine, he didn't know if Magnus would wait for him to get out of the way. All be it useful, he doubted Magnus would ever be labeled "Reliable".