Curse you escort missions.
I was doing nothing but enjoying Far Cry 3 until I run across this suicidal NPC in a striped shirt who not only runs directly toward the enemies, but through a mine-field as well. If I hang back and play sniper, he gets over-whelmed. If I move too far from him, I step on a mine and blow him up.
Then later on, I had to protect the guy who sent me on that mission as he proved to be utterly worthless in a fight.
The problem with escort missions is they usually force you to play in a very aggressive manner just to protect your idiotic charge. Saints Row 2 had that freakin' timed escort mission where you had to roll a guy through a hospital and defend him from assassins, which is double the evil.
The only escort missions I've thought were well down were the ones where you had to carry someone, which allowed you to drop them into an easily defended position. It at least allows me to play in something resembling my style of play instead of being forced to triple-time.