The escort missions have to be some of the most ridiculous missions in the game. The mission that I have been stuck on for a while is in Phase III escorting the flight of F-18Cs to destroy the HF signals facility (2931444). It seems that either the SA-10 or the Russian MiG-29s lay the F-18Cs to waste.
Second up is the mission where you have to destroy the nuclear bunkers. Way back when, I used to be able to use a SLAM-ER+ or two to take out those bunkers. Now, they are invincible! I think I read on here that the bunkers are "floating" off the ground and thus can't be destroyed?
AMD Phenom II x4 945 3.0 GHz Processor
4GB DDR3 1066 MHz Memory
MSI Radeon HD 4850 1GB 256-bit DDR3 Graphics Card
ASUS M4A77TD Pro Motherboard
Windows 7 64-bit