Place a tank platoon on the map(for best results try the salt flats). Have the commander of the platoon be the player. Then perform one of the following for each issue.
Order your tank platoon into line formation, wait tell they lined up. Order your tank forward with the awsd keys, drive about 100m and order halt. This will replicate the late reaction times of the AI for formation.
Order your tank to move slow for 50m. Then to halt. This will replicate their inability to use the slow pace to keep proper formation.
Order the tanks into a column formation, then order them to relax. This will replicate the lack of any indication they are vehicles and not infantry, and will attempt to wounder around as if they were.