Commander Takant is the Commander. Um, that figures. His alternative title is Dominus Magister Draco (roughly translating as 'Mr Big'), but that sucks so he doesn't use it much.
Takant is officially responsible for the whole Chapter. Since the Saurus Legion is pretty much the most powerful force on Karos, if not the whole Sardkaon system, and the god hasn't been seen for ages, Takant isn't actually responsible to anyone.
Luckily he hasn't realised this yet, so he still keeps the Chapter ship-shape and well groomed. He likes his Lieutenant Commanders sparkly, their Captains gleaming, their Lieutenants squeaky clean, and all the Marines below them at least a little scrubbed. Whilst this ideal is rarely upheld, you can't fault the guy for trying.
As the Commander, Takant naturally gets all the best stuff. He rides on his pet First Born Throwback dragon Maerkanon, a nasty piece of work who likes his meat cooked, and luckily incorporates mechanisms to do that himself. He carries the Void Blade, a sharp chunk of solid warp matter (with all the impiclations, plus a few more you haven't thought of), and the Khan Cannon, a mini non-jamming portable autocannon. He wears the Armour of Krenn, which is just about invulerable stuff, backed up with a stiffened personal force field.
I told you he got all the best stuff. Except for what Matthawa's got, I suppose.