Cat I, Cat II, and Cat III
USMCFLYER:
A Cat I ILS normally has mins of 200 and 0.5. Cat II is usually 100 ft (can't remember the viz; but I think it is a quarter mile) which requires a two-man crew: one to fly the approach; one to takeover and land, and Cat III is autoland, with no Decision Altitude, and viz on the order of 600 ft (varies from carrier to carrier).
I'd say the fact the Corps is letting you go to published Cat I mins is pretty strong....the Air Force doesn't let the average fighter-pogue go below 500 and 1.50, usually, unless you're an IP. THEN they'll let you go to published Cat I mins...with Wing Commander approval!! Never happens...only in time of war.
Ironically, they let FAIPs do 300 and 1 at home-station in the T-38...which is approach Category E, and the fastest-flying final in the inventory.