How do u take down entire buildings in bfbc2? ?

By take down I mean like I've seen buildings collapse on a m com station during rush but the best I've done is blow up a wall or make a giant hole. I know u use c4

How tho??How do u take down entire buildings in bfbc2? ?
Lots of C4 inside, try to evenly spread it lol. Who know explosives and making sandwiches had so much in common.How do u take down entire buildings in bfbc2? ?
use any explosive things, i.e rocket launchers, grenades, tanks, choppersHow do u take down entire buildings in bfbc2? ?
Plant C4 on all the interior walls.. it takes a lot of C4 though.