I've just upgraded my Dark Heresy to the second edition and am proof building a couple of characters to familiarize myself with the process. When rolling up a guardsman (which I intended to make a heavy weapons guy), I noticed that both the Weapon Training talent and Ballistic Skill characteristic use the Finesse aptitude to advance, which a warrior is unable to get. This seems a bit strange as, in my eyes, a warrior should be the role that will be most accustomed to handling different kinds of weapons and hitting things with ranged weapons. I know it´s still possible for a warrior to get these things, but being more expensive, they will be less likely to do that. Certainly with heavy weapons, which don't require a whole hell of a lot finesse, should the warrior be the role who should be able to get that for the minimum amount of XP.
What's your take on this? Is this right?