https://armoredlabs.net/index.php?/topic/32388-in-development-tr-85m1-totally-not-a-type-74-20/
So now we know all about the vehicles in the BP. Literally none of the rank rewards are worth getting, which means only the 2S38 and the coin shop remain as the biggest appeal. Even "appeal" is putting it lightly.
Skipping this entire BP would be my recommendation if you have zero interest in the 2S38, and absolutely do ignore everything about the ranks. Do not spend any money on this BP.
Don't even bother buying access if you can't afford it with gold, and even then think about whether your gold is worth spending on this pile of shit.