Hello, I want to create a Duna base in career mode. Obviously, the parts will be landed separately on the surface, then moved closer and docked together. For that to happen, I need to land all of these parts (and later, other parts when expanding) very closely together, no more than several hundred meters apart. How can I achieve that? MechJeb has landing autopilot with atmospheric reentry predictions, but somehow it often puts estimates wrong, as far as 30km from chosen landing spot. Also, it doesn't account for drogue chutes, which are kind of necessary before deploying the mains. How do you do it? What's the proper way?