Artificer Armour also comes with a built in MIU which gives some bonuses when used with things you can plug into. If I remember correctly it's +10 to Tech-Use, Pilot and Drive tests.
Signature Wargear armour
Cool, because I am trying to stat up some named characters for DH/Ascension, and Coteaz wears Artificer Armor, so knowing how durable it is helps greatly. It's cool being that level of Inquisitor, and being able to requisition ANYTHING. I figure that, plus his force weapon annointed daemonhammer, plus his ryza-pattern plasma pistol will make for a potent, nasty character, fitting with one of the best the Ordo Malleus has to offer.