I've found the 'Ironclad' modifier to be mildly annoying this week. There are a few strikes in which nearly [i]everything[/i] has a shield. If you're not using Explosive Rounds on your primary, low-tier mobs become tedious. I shouldn't feel compelled to use anything other than my primary when dealing with shanks. Tl;Dr: The inclusion of the 'Ironclad' modifier warrants the return of elemental primary weapons.