VKB-SIM

I purchased a Gladiator MK.II in 2017, and would like to use it with MS Flight Simulator 2020. I want to flash the latest firmware upgrade before a final calibration, but I am thoroughly confused as to what firmware file to use. I believe I need a "_BlackBox_MK2_GF_xxxxx" file, but which one?? How can I tell if I need F14, KG, MCG_PRO with Twist or not, SCG, TMW?

Thanks!

For GL, you need to navigate by the installed grip. If there is a default one, then you need to select Gladiator_v1 _ **.
You don't have any BlackBox (box with controller).

I much appreciate you making the effort to answer a newbie's question. Thank you!