How the Eff do I attack?

[CodenamePingu]

Hey guys,

I have been men of war assault squad for a while. I am the highest rank of sergeant, so I am not that much of a noob.

My problem is, whenever I attack a place I generally know what to do, but only in combat or assault zones. I know how to counter a tank, with a TD, and infantry, with AA etc...

So the questions are:
What do I counter a TD with? An anti tank cannon just gets blown to smithereens before it can shoot. A tank gets sniped and artillery need a direct hit. What I'm forced to do is get an AT man sneakily up there or rush the **** out of it with a Willy's jeep, my personal favourite, but both are useless with a good enemy.
Another is, I've never EVER read about a good, structured plan of attack for frontlines. What do I start off with? A scout then artillery? Or what?

I need help, I feel humiliated with the fact that I don't know this.