I always fitted Ransom with Scalpel and used him as close air support for the artillery, but yeah, it was always a problem when you turned your back for 20 seconds and he had chased something halfway across the map, and was now happily trying to engage multiple enemy AA towers
hahha yes that's right! The guy's a complete nutter. I usually play a cautious game so I have to keep tabs on Ransom. Borden is probably the most reliable of the pilots.
Kroker seems best as forward control in a stealthy Puma. On some missions, if they're about, I like to use a cloaked Puma to push petrol tankers into enemy bases. The mission when you first get Puma is great for that but it takes ages to set-up.
I find Patton in a Salamander with Warhammer is great for beach assault and put myself and one or two others with long-bow equipped Hovercraft/Choppers as cover.