10 Road Kills IaR? Took me three tries, full 64 Man Gibraltar. Drive Back and forth, you'll get it eventually
The FAV only takes 30 seconds to respawn, so its not like you have to wait all day for it.
Problem Solver? Not too hard, just play on empty servers, servers full of noobs, or servers with alot of your clan mates. I have 14 of them across my two soldiers, and less than half of them were earned on empty servers or servers full of my clan mates... I only feel I "deserved" one of them (I truly solved the problem by clearing out nade spammers with mah Zeller), the rest were all luck or assisted.
I do agree that the AA ribbons are somewhat dumb, the only way to do it effectively is to either be the gunner in a walker, or to use APMs.