Get off the vehicle and shoot the guards? Maybe my game is screwed up or something because it doesn't work quite like that for me. As soon as the shooting starts, he is already getting hit, and by the time I start shooting, he's about half dead. If that happens more than once, the mission is over. Doesn't matter how fast I react, it still takes the time to get off of the forklift. I'd shoot the guards, go back and get a crate and the guards were shooting again - within about 5 seconds.
I don't like to snap at people, but I don't care to hear peoples' opinion about how easy the mission is. The is no room for boasting in a thread were people are asking for help. What would I say to the mission where you have to steal a hydra? No idea, obviously, but as long as I don't have to babysit some npc with a helpless AI attached to it, there won't be a problem. I hate missions where you have to protect people, in any game.
Bah, better call it a night and get off of my PC.