Will confirm as well. I didn't bother deleting all the vehicles and waypoints to test as that would be remaking the mission basically. Loading worked but took a long time, RPT file was 18MB with mostly "Error: Bone face_browfrontleft doesn't exist in skeleton OFP2_ManSkeleton" errors.
Quick fix was to get rid of world=empty in launch parameters and now it works fine.
Also, player and playable units are basic infantry, nothing to do with enemy or friendly vehicles.