Yes, I could not help but notice the IG. I have personal doubts whether they would be a playable "race", since the average guardsman could perhaps face snotlings alone, at best, and win, which against anything bigger it might look very, very bleak. If they attempted to balance the IG, so that they were comparable "Stats" to all the other races, well, a lot of Space Marine and Chaos players, I believe would be at the least annoyed by Guardsmen with Space Marine Endurance. I'd just guess they are NPCs, in any other case, if I had to play the IG, Lemun Russ Tank commander, or an officer capable of summoning IG squads at will. I assume Storm Troopers could be an exception, but they would still hardly match any of the other races.