[rollnloop]

You can try to put an armored vehicle in each light convoy, like a T70 for russians, a PzII for germans, a stuart for US, etc... then you check in technics.ini that each of these "pace makers" have the same entry for "best speed".

It's not too akward i think, to have one of those lightly armored vehicles in any convoy. One can always meet infantry opposition, light armor is welcome in these cases.