If a vehicle is a leader of a mechanized groub, it drives to fast for its infatrie teammades.
For example:
I edit a mission in which a mechanized group has to attack an enemy city.
The vehicle has to unload it teammates 200m ahead the city.
after that they have to engage the town.
Istead of engaging together the vehicle drives very fast forward, and is not waiting for its infanterie even if i set the speed on limited.