During the mission I am given supports to use as I see fit (Artillery and a CAS Chopper)
I call in the chopper expecting for it to help in the fight against the 2 MBTs the 2 AFVs and the MRAP....... except it comes in, and circles until it's shot down.
I wouldn't mind it circling if it actually started shooting things, but the way the Blackfoot behaves now is just a means to end the mission faster (If it's shot down).
So I decide I will save my artillery to lay down some AT mine clusters. I call it in way ahead of time with a vision to use the AT clusters to deal with the MBTs and the AFVs so me and what remains of my team can focus on the MRAP and the infantry. Except I call in the first cluster with a reported splash time of 48 seconds, except 5 minutes pass since the artillery receives the call and there are still no AT mines in place. And because the rounds haven't landed I can't use my remaining Artillery fire mission to place more AT mines of use a laser guided shell because it's greyed out.
I've tried everything.
I try laser designating targets in the hope that would make the CAS chopper do something.... It doesn't.
I try to man mode with a Missile launcher, but that always ends up with the town being overrun and me failing the mission. I've tried using the UAV missiles to deal with the tanks, but even then the UAV missiles can't hit the broad side of a barn door, no matter how stationary the target, or the laser designating crosshairs are....
I just have no idea what to do, there have been some moments in the campaign (being a new arma player) that I've struggled with, but with practice I've managed to work around them.
There is no work around for this as far as I can tell.
It's me, the tattered remains of my squad, and an AFV (Delta 3-2) that keeps driving into walls and getting itself blown up, which also makes me fail. And it's 3-6 guys vs 4 tanks an MRAP and two Squads of enemy infantry.

Just please sort it out, all the other struggles I've had were purely on my inexperience either commanding a squad, or playing the arma game in general.
This is not me.
This is game breaking.
I'd be fine with artillery and CAS support. In fact my initial reaction when I discovered I had a load of artillery support to play with was one of joy, and there were exclaimations of joy and relief when the CAS Chopper support popped up on screen. But on the 3rd retry I noticed that what is the point of having these supports if they do not work at the moment when I need them most?
And why am I being punished with a failed mission when I'm doing everything within my power to stave off this attack?
Please make the CAS chopper and the artillery actually work...
I was really enjoying the campaign up until this moment.