When speaking of tankettes, just found an interesting factoid about Czechoslovakia (yea, I know, we're dealing Italians here, but bear with me
) vz.33 tankettes - the MG mounted in front of driver was fixed, firing right in front of tank and hitting ground at 300 meters.
Tried to simulate this in my Czechoslovakian OOB (will publish when ready, most likely after next week's vacation) by using MG with range of 6 and 0 accuracy.