Andy and I are of the opinion that, in Ukraine at least, Arena installation is NOT as common as was thought and I have, for the game AI anyway, made Arena tanks radio code 91 ( rare ) and introduced some versions without it that are radio code 92 (common ) which cuts down on the number of them showing up under AI control
What I had been lead to believe was the later gen arena launchers appear now to be just smoke grenade launchers
So it would appear the effectiveness or lack of in regards to Arena is more a case of it just not being installed in the majority
OR given most of the wrecks ***appear*** to have been made that way from attacks to the side it is just not that effective from that direction
OR
all or any of the above