"Depends on how they are built - many of them have," he gestures vaguely. "Well, means of moving over mud and rough ground. They are slow but heavily armored and armed." With that, he starts to grab, and push away shattered crates, discovering a length of taut rope over part of the armor.

Wordlessly, he cuts it, figuring it would be faster than trying to find where it's tied and undoing the knot. There's a good chance he thinks that the hatch would be tied down along with being locked.