Attack ground does work (inconsistently).
with what? the paks in the video clearly never hit although i don't know if that's just a really long bad RNG streak or if other weapons work.
As do mines.
if you mean the 1.5 seconds shown in elchino's video i wouldn't consider that detection. the mine functions fine but the tank isn't revealed long enough for anything other than an AT gun pointing directly at it and off cooldown to hit and even that won't prevent cloak.
i also wonder if this game has the same issues with in/out of combat that dow2 had; i remember cruzz mentioning something about it a while ago but can't remember the specifics.