Mission 1 Update 2
You might find your target, or you might not - ground targets are very hard to find, thankfully these ones are moving which makes it much easier. Picture yourself in the cockpit of an aircraft at 200 Ft AGL, that's the height of church steeple, radio mast or tall tree, flying at loiter speed of 350 Knots (400 mph, 650 KPH), looking for guys who don't want to be found. If they are not moving they have camouflage up and will be very stealthy, moving, at least you might have a chance.
If you did find someone your units automatically attacked them and the second pair has took over the job. You will note that this might not be the most efficient way of looking for ground targets as that 6-hour ready time is a heck of a wait. To do this task properly you would need an entire Squadron, of 12 aircraft, with 3-4 on maintenance and 8-9 constantly running this patrol 24/7.