This actually a good idea, why no one practices this strategy in the anime? (aside from Anzu)..
Probably it would only work if; 1. You had superior numbers. 2. All of or at least the majority of the enemys' tanks lack a rotating turret. And 3. If sneak up on them, or get a very lucky shot and thats if they don't have treads protected by armor.
Commander Nishizumi...Please have mercy, even if it's against Kuromorimine...!So this... is the Nishizumi style...Turtle team, please aim for the enemy's tracks from a hidden position.If the tanks are tough, then all we have to do is make the people inside surrender.Hippo team, you'll ambush them and aim for their tracks.Pakipaki is the sound of their hearts breaking. ♡So we'll stop those heavy tanks by aiming for their weak point!Even Kuromorimine students are girls just like us.Really, just hit their tracks.This is operation pakipaki!Duck team, aim for the tracks while the enemy is confused.If we break those awfully heavy tracks over and over, then we can drive them crazy.Everyone else, please also aim for their tracks.※ Kuromorimine Battle Strategy MeetingEhh...Automotive Club