Can't we also make mortars a little better than they currently are? IMO they all underperform massively.
At least make the smoke barrage more responsive so it doesn't take ages for them to fire a stupid smoke shell in front of an MG.
Also maybe reduce scatter on the barrage? It seems very unreliable to try and counter MGs with it and that's the main purpose of a mortar after all. Not sure if it's good design that you try to barrage an MG and after a full barrage you still haven't done any significant damage.
I actually had an idea for a neat way to buff mortars.
The mortar smoke barrage's cooldown syncs up almost perfectly with when the smoke clears. If you babysit a mortar, you can keep an area smoked forever.
So why not make it a sustained ability like Attack Ground? Order a mortar to lay down smoke, and it'll keep doing that until you tell it to do something else.