They are treating pirates, marines, and aliens as supplemental
character types. Along, most likely, with other characters of this
type and nature.
These are pretty core archetypes if you ask me.
It just smacks of easily digestible, 'World of Warcraftish', type
design of roleplaying. Making it easy and immediatly approachable by
even the lightest passive gamer. Which brings me to the main gripe, to
generate sales you cant have a game appealing to too much of a niche
market. Paper and pen based roleplaying games -are- inherantly niche
market games, the approach GR are taking reflects something on a par
with the tabletop wargame.
GM's need to have all the gaming information and mechanics to hand. If
they dont, you end up with a half made mishmash like Inquisitor.
Keeping the players and GMs guessing until they find something better
and more complete. Imperium.