Redemptor Dreadnought

I HAVE LEGS! I HAVE FULLY ARTICULATE LEGS!

First mentioned in passing in the Primaris Marines FAQ. For no matter how great and glorious they may be, in the grim future even they are not immortal. Though how enough of these brand spanking-new Space Marines were curbstomped just enough to warrant Dreadnaught status, we'll (probably) never know. Times be desperate, yo.