They are basicly an"artwork" update, so the will not have indirect fire option. So they will mainly work as targets and to help identify certain enemy formations.
(guess implmenenting a whole arty(firing tables, sensors, fire-control structure etc etc ) system is more work then they could do till now)
They will however be able to defend themselfes with direct fire...and in this way are also somewhat useable as assault guns
New video showing the gunnery on the T-72M1 / M1 and the CR2
Well, I know...the makers of this movie need some history lessons, and we are still stuck with yankee turret-talk in the CR2, but me thinks it still looks nice.