Common, Uncommon, Rare?

I remember in the day, WotC said they lowered the T-34/76 to uncommon because of it lack of availability, it was a rare in set I. The Panzer Iv was uncommon as was the m4 But The t-34 was not.

The rest don't seem to have any rhyme or reason for their classification

If there’s no rhyme or reason then I don’t feel so bad about being puzzled.

I always sorta thought it was without a total pattern (the scale changes probably didn’t help), but there were SOME patterns, whether intentional or not. For example, I always gave the sales pitch on the game to new players by highlighting the fact that some of the best all-around and representative units in the game were the cheapest and easiest to acquire. Think Pz 4’s and Shermans; very cheap, very common on the real battlefields. The more niche obscure (from the US side of the puddle, at least) units were more expensive, regardless of actual game power (the 7tp sucks, but its rare, expensive, and I want one lol). So I felt like some of the rarity patterns were centered around ease of getting a workable starting force built, then fleshing out with rare/uncommon armor and support units, or to expand into earlier or later periods of the war. My 2 cents, gents.