Hit and run implies to divide our forces making them easy targets for the speed freaksI understand that, and I'd argue the same with trying to go out and strike a target since w have so few marines on the ground. Though I'd rather prefer ambushes since our whole thing is being good at sneaking around.
I also don't want to sit around and let them come to us. The way I see it is that the ambushes are there to soften the foe and if things go bad, we can retreat to the ship for a last stand.
While keeping our force together atleast means we have strength to counter that
If we strike there least defended point which is the prison we can quickly mope up and haul the slaves away
That deprives them of Sorcery fuel and gives us fodder to supplement us