In real life these things are not so easy. Do you know where Beirut airport is in relation to the border? How many people are guarding the airport? Yeah it sounds easy send in a tactical team, but it is not. How do you ensure that they get out? Remeber his was on the first day of the fighting.
I can just imagine what people like you would have said if Israel had shot down an Iranian airliner besides the fact that it might have set off a regional war.
But, who cares about all that, the armchair general here has declared that it is easy so he must be right. After all, it worked in Rambo, or some other war movie. Unfortunately real war is not like a movie and is not so simple.