He'll just throw on his cape of invulnerabilty and nothing will happen to him. Or he could warp to the dark side of the world untill all the bullets pass. Or he could warp out of the area with his Ocarina/warp stone ect... Or he could but on the red armor and loose money instead of life.
If they use lasers he can hide behind his mirror shield and reflect the laser fire right back into the army.
EDIT: I don't know what the point is anyways, the only people supporting Cloud are the younger generation who started gaming during PS1 era. They can't be reasoned with (Half of them still think the PS3 is going to own this gen) and they didn't play 2d games, (otherwise they'd realize how much better Final Fantasy III(US) VI(Japan) was over VII). They're fixated on Cloud because they were young and impressionable and he was a badass while young. Had they been born ten years earlier they'd think the same about Link.
Just remeber Link still has way more marketability and recognition than Cloud ever will. You could ask 100 random people who Link and cloud were and you'd end up with a higher percentage of recognition for Link than Cloud end of story.
