I noticed the court cards put "B" "A" & "K" instead of the usual J Q K. Is there a reason for this or is it like Ukranian alphabet or something?
It's the Cyrillic script used in the Russian language.
В has a pronunciation more like a V does in English, as in VOICE. The Russian "b" sound is actually this letter, Б.
What you identified as an A is actually a Д, which is pronounced like a D in English, as in DAY.
The Russian К looks a lot like the English K - it's a good thing they're pronounced much the same, like K in KEY.
The jack, queen and king of a Russian-language deck are валет (valet), дама (dama) and король (korol'), which are derived from the valet, dame and roi of Parisian decks.