Yup -- Amizaur's Armored Beasts (AB) is pretty well done given the game engine constraints he was apparently faced with. But in terms of projectile penetration capability, armor ratings, slope effects, etc AB plays much better -- in my humble opinion -- than stock RO. There is room for improvement in the AB mutator, but I think Amizaur went a long way in making armored piercing projectile capability and armor protection values more believable with the AB Mutator. Panther drivers will also love the duel magnification gunsight.
Just an aside, I have to say that the Plate slope effects are horribly modeled in the stock version of RO. I don’t know how many times I have seen close range ricochets by Soviet 122mm AP on a Panther mantlet. The whole “tank angling” and its effect on compounded impact angle is way overblown in stock RO. The AB Mutator goes along way toward fixing this issue.
Conversely, I don't know what they are doing at 7th Guards Tank Korps Server (7GTK), but there is not really any connection between reality and what t34/85s and is2s are doing on the 7GTK maps. Their "Steel Beasts" Mutator -- from what I have seen thus far -- is horrible. But hay, if you wanna drive super tanks that kill all Germans panzers while at the same time being completely invulnerable to German shell fire, than the 7GTK server is the place for you.
If you want to play RO using Amizaur's Armored Beasts Mutator, than try the FK#4 server. There is usually a good number of regulars playing on the server. They only play tank maps -- albeit almost exclusively the Alte Ziegelei map. Great map, but they should also consider Maslova as well (shameless plug)
. And not the stinky mods of the original Maslova (ala the 7gtk MOD2 version -- P.U., or the Maslova Heavy Tanks thingy) -- play Maslova_1943_Version_C