Can you tell or show how do you do it?
Does it mean you ussualy select the ATG and A+click with supporting infantry. Or ussualy position first, move infantry forward. And wait for tank to get inside arc of fire.
1.Bind all your at guns to one control group.
2.keep at guns BEHIND your Frontline AT ALL TIMES
3. When your infantry encounter enemy armor, immediately press your at gun control group number (for me it's 1) and a-move in the direction the enemy armor is in. 2 paks will kill enemy mediums in 2 volleys, t85s require 3 paks to kill in 2 volleys.
4. Make sure your at guns NEVER EVER move past your infantry after you issue an attack move. Always micro them back into fog after you've destroyed or forced enemy armor off.
You have to make absolutely sure you don't lose paks to the enemy. Obviously katyushas are a good counter to this technique so be careful and micro your splits well