Destroy npc ships when they collide with terrain

[Ascendingbike42]

At the moment when the thrusters of the npc ships in odyssey conflict zones are destroyed, they just bounce off the ground until they come to a stop and often take very little Hull damage from this impact. This makes ship combat above the odyssey bases almost identical to space combat. I believe it would help to differentiate between them if npc ships were destroyed upon collision with the surface when their thrusters are destroyed.