people don't do well in armour because they dont use any recon imo. they think recon means getting out of the tank to listen, thats not recon, recon is working with an infantry squad or a commander or scout chopper.
The problem is that in a map like Kashan, it's really very very easy to win if your infantry keep up their part of the deal, capping flags, falling back as needed, etc
this is the thinking that is best left behind, its not US and THEM. you are 1 Team, you are arms and legs of a body, you can't play a game of tennis with just an arm, you gotta get those legs moving too.
my favourite setup -
2 tanks, 1 APC/IFV, that way I am the firesupport for an infantry squad, and I can transport them as well.
This effectively turns 2 6man squads in to 1 12man squad with a far wider range of capabilities.
Enemy armour? your tanks can take the front row, infantry can get a HAT off your APC, your APC might also have AT capability.
Enemy AT? your infantry can move up, neutralise the AT and then the armour can mop up the rest.
an infantry squad with a HAT is powerful
a tank squad is powerful
a IFV is powerful
an infantry squad with a HAT, moving with an IFV that has AT and ammo flanked by heavy armour is nigh on impossible to stop.
Add a helicopter in to the mix for mobile supply drops and reinforcing friendlies, and it just gets sweeter and sweeter, if ther is CAS avaliable the infantry squad can mark targets for you, hell if your tank goes down and you are bleeding, the infantry's medic can save you, and you can get temporary kits from the APC. All you need to do is stay calm, move deliberately with specific responsibilities assigned
Its not US and THEM, you are one team.
If one of you suffers, you all suffer, if one of you suceeds you all suceed. All it takes is a quick chat in text or mumble to get stuff rolling.
Mumble SL meetings not using the radio are remarkably effective in this scenario, as this leaves the radio channel clear, and your nearby squad members can hear the planning taking place so that they understand what is expected of them.