Yep.
The first combat round only with 1:1 basis between TacB and Tank makes it more manageable.
After first combat round, there is no need to remember how many hits remains.
Seems fine and workable.
Since my little playtests showed me that less combined arms makes for faster combat, it is the limit I would go with TacB and Tank.
According to my own TcB A3 D2 houseruled, it acts like a Tankbuster because it allows to select any ground casualty (useful to get ride of enemy’s Tank). It works well too.