In reply to GrahamD:
Capsule style is how most remote big wall ascents are done nowadays, with leaders fixing pitches above camp, then when a suitable new spot is found, moving the entire camp to a new location and removing the ropes. Repeat until summit is achieved. It's not quite as pure as alpine style but still much better than most other styles.
What those guys seem to have done on GII is traditional "expedition" style, with pre-stocked camps and fixed lines in between, until a big summit push from high camp. But they also had a very small team size and all climbers got to the summit instead of having a support team to do the hard work and leave summit climbers fresh, which is a definite departure from old-school siege expeditions.