Assault mode AI

Has the Ground Assault mode bot AI been tweaked?
The battles (especially above 3.7) seem a LOT more difficult.
The air component seems a lot more aggressive. In one battle I was bombed 7 times - the enemy tanks never had a chance to kill me - the air did it for them.
Also, every single time I managed to get into a flanking position, I was bombed and all that time was wasted.