Isn't it cheaper to just add more AT to your divisions?
In any case only the most extreme tank builds will need 2 AT or more. In which case you are better off building your own tanks to counter them, INF will hold them off just fine at that stage.
In any case only the most extreme tank builds will need 2 AT or more. In which case you are better off building your own tanks to counter them, INF will hold them off just fine at that stage.