My suggestion is to correct the woeful lack of realism in the missions.
1) people need to check weapons and vehicles out at a quartermaster. You don't just walk in and drive them off. Also, you don't leave them behind - everything must be accounted for or people will just end up selling their gear off (in real life.)
2) Soldiers are trained for one job, and one job only. You are a driver, or a loader, or a gunner etc. You can't do all three. Plus, you can't drive multiple vehicles. One vehicle, one station. That's the law of the military.
3) Soldiers don't interrogate civilians, and are not expected to find intelligence. That is the CIA's remit. If intelligence gathering is needed the CIA will do it, or specifically brief hand-picked men to do the job. Soldiers are just bullet-stoppers - even special ops.
4) Regular troops and officers hate and distrust special ops troops. They don't give them carte blanche to swan round the area causing havoc. They see them as potential loose cannons, and to some extent they are right to hold this opinion. Despite what the movies depict, special ops troops are not always gifted with bright, insightful minds, so you don't give them delicate political missions. You have trained civilian liaison officers for that sort of thing.
5) When did armoured vehicle start operating alone? The are all attached to larger military units, and do not under any circumstances work alone unless they are specifically tasked with scouting. Furthermore, scouts are told never to engage the enemy because they act alone. So why does every enemy vehicle seem to be moving around without backup of any kind?
6) No one, but no one, gets to go on UAVs at the drop of a hat. Their missions have to be specially tasked, and only highly trained operators go near them. You ask them for intelligence, and they supply videos and other details. They are not a Playstation terminal. Also, they operate at very high altitudes in order to provide a stable unmoving image - in ARMA2 they seem to be flying way too low to get accurate images.
7) Where is the satellite data?
8) Where are the logistics operations? Why are there no trucks supplying ammunition and food and all the other essentials?
While I accept that some combat realism must be sacrificed to make better gameplay, the above points are all part of the mission design. They do not affect gameplay, just make it necessary for mission designers to put more thought into presentation.
While the current campaign in the game is utterly worthless, I have no doubt you will be releasing a forthcoming addon. I would ask that you ensure that the issues raised above are addressed.
However, I do not claim to speak for everyone. If any people agree or disagree with me then please comment below.