@SovereignGrave
Yup, all's well. You're in

@naxhi
Magic is a no-go. I [i]can[/i], however, accept that they could breathe maybe not fire, but ice, as a natural ability. Similiarly, quick healing - as found in some lizards and geckos - could be acceptable.
You still have the fire-ice misbalance. It is either resistance to one or resistance to the other. Heat plays a major part in warfare, negotiation and illness and being so flexible is just too powerful.
No cavalry, no war machines, just super-heavy infantary trained in all weapons. That's going to make sieges pretty damn hard. Not a necessity, but might be something you want to look over, since heavy armour is weak against blunts weapons like warhammers and maces.