User blog comment:SilencedSkies/Body Armor: A Comparison./@comment-1440333-20130213151741/@comment-1440333-20130213233905

Yeah again Space Marine barely scrapes the lore of Warhammer 40K.

Why don't you read this instead: http://wh40k.lexicanum.com/wiki/Power_Armour#.URwj4V9wiSo