Sort of a Hybrid between Salvage and Escort ~ a team failed their mission and left a Drilldozer down in the dark and the critters that make BET-C a threat have found it and are running amok.

Get in reclaim the Drilldozer and then escort it back a point for data core salvage (here in the ability to recover the drillhead is the goal) Idealy the Drilldozer will have gained some measure of Dreadnought like toughness while under the effects of the Xynarch and be constantly drilling onwards.

Maybe as a extension of the Toughness that the Xynarch are inside the Tracks so that both need to be disabled to be targeted and then later once they are dealt with then the Tracks repaired do the Drilldozer can be activated again.