Well as far as I'm concerned the discussion wasn't about bf3 anymore, I personally am just discussing the destructive capabilities of the AT-4. Some people claimed that this was how the round round would work in reality as well, I disagreed. I'd expect you to be used to this kind of arguements on a forum, where the tiger model having the incorrect amount of wheels can be the source for 3 pages of discussion.
If you want to discuss the game? I dont have much to add here. You think its fun for any class to inflict the amount of damage of an artillery round and I can respect that, you'll probably enkoy this. I find this boring, as every battle plays out exactly the same - destroy the cover, kill the guy. I need more depth in my games, with the element of tactics needed as well as the elemnt of skill, so I'm gonna get RO2 instead of this. So thats that.