Actually Ralin Drakus there are several types of armor varieties; Crusader, Neo-Crusader, Death Watch, Shock Trooper... Though I think I'm mistaken with there being super commando armor, I thought I read it somewhere but maybe not. And this is taken from Wookieepedia: Throughout Mandalorian history, three major features remained constant in Mandalorian Armor design:
1. The wearer was always protected by lightsaber-resistant Mandalorian iron, which could also deflect blaster bolts.
2. The helmets almost always possessed a T-shaped visor and a sophisticated heads-up display (HUD).
3. Mandalorian warriors decorated their armor to reflect personal accomplishments, clan affiliation, or simply personal preference. They often repainted their armor to reflect rank, clan, and possibly the current terrain. They were also known to paint their armor in the traditional colors that represented specific causes the individual might currently be undertaking. The color blue represented reliability, green for duty, black for justice, gold for vengeance, red for honoring a father, and gray for mourning a lost love were common color variants. The colors, however, did not always have a specific meaning. Sometimes they were just colors that the particular Mandalorian liked. Some Mandalorians wore pieces of armor to honor relatives, both dead and alive.
Though I know that a lot of mandos didn't use Mandalorian Iron for their Beskar' gam I thought that the T visor was always consistent, even with defectors like the Death Watch.