Di Caro is right when he says that a squand of infantry with an officer is usualy hard to take out. But for this tactic to work you need to be sitting on the objetive. Because if you are dug in somewhere with cover and you let the other regroup over the objective, you will be the one in trouble when you’ll run for the objective at the end of the game loosing your cover.
I personnaly think that during a game it’s (most of the time) very good to change tactic so your opponent doesn’t know what’s next. When I encounter an infantry squad as Di Caro describe, I usually bring up a German SiG 33. I can stay out of range of the infantry and destroy them ( no cover and all infantry in a hex )
But the SiG33 is tricky to use because it has no turret. Sometimes in order to be able to fire it has to be out in the open. So you need a tank to protect it.
But I must agree that a very good situation is where a squad of infantry is dug in on the objective with 1 or 2 tank able to oparate around the objective.
Booster 2 also bring a solution for infantry squad with the snipers.
All of this just to say that as in real war, you must adapt to the situation and surprise the ennemy with tactic changes. And that there is no “perfect” tactic that will win all battle.