That only applies to those on the newer consoles as well as those on the PC, however, so it looks like the people playing on the older consoles won't benefit from this tech.
It was not specified how that'd help, specifically, but it was said that those looking to get Vanguard can expect to save anywhere from 30% to 50% more disk space. Activision attributed the reduced size to 'new on-demand texture streaming tech' which will apparently help with this issue. News about the plans for the install size of Vanguard was shared over on the official Call of Duty Twitter account.
