Pretty sure shocks were well used at 2cp's. They don't have AT because they are used by soviets looking to add to their arsenal with AI. Also shocks are free to pick up weapons and make short work of tanks if they get a shrek. That first statement you make is completely incorrect and non-logical.
You can't spam PG's against guards because that player often goes snipers. If you spam PG's you lost on mp bleed. Guards stand a great chance against PG's. You can use their grenades to hurt PG's bad. In addition, I use guards to take on PG's regularly. They just need to be in cover before the PG's arrive. Which they will be because they come out before and you should have map control by then.
Also in a 2v2 shocks and guards are both deployed at the same time. How exactly do you stop these two units when the units designed to stop them are already hard countered before they enter the field?
Wong I really encourage you to read more of Gustav's thread about early elite infantry (
http://www.coh2.org/topic/12160/shocktroops-at-1cp). You will learn a lot, and be disabused of the notions that elite troops at 1cp are good.
I also encourage you to link to your player card so I can see just where you sit in the rankings. I am having a really hard time understanding how you are coming to your conclusions. Feel free to look me up my name here is the same as the one I use on Steam.