>>10907096No, they do the trend of "line is for X number of inches tall therefore all figures must be that many inches tall." In McFarlane's case it's 7" and in Playmates' case it's 6".
Marvel Legends, both under Toy Biz and Hasbro, went with the convention that 6 inches represents approximately 6 feet and scaled all the figures around that size, with some being taller or shorter. Marvel Legends and especially GI Joe Classified are a bit bigger than true 1/12 but are roughly the same scale.
With McFarlane (and toy biz) you get dumb shit like this were a Sister of Battle is almost the same height as a space marine even though the space marine should be towering over her.