Help with mapping! (and ideas!)

Hello.. For the last week i have started on multiple maps. One is now finished and right now i am doing a helms deep map. In the movie there are a orc with explosives that runs into the wall(water thing) and then the wall blows up.. I need some hints on how to make that in a game! (i dont need help with triggers)

If you have some other ideas that i could fix on the map so then just reply!

I guess you could jus have a orc( with special effects and all) walk into the wall (make it a destructable) and then the wall collapses. If you need the triggers for it ill post it up for ya.

But then i would need a wall model.... ...and i doesn't have one.... and there is no trigger that makes it able to destroy terrain or walls.. But thanks anyway!

I've played Helms Deep maps before, and usually what they do is make that part of the wall a bridge doodad (which can be destroyed by triggers, I believe).

Actually there is a wall model in the mpq (I use WEU so i dont know if it is in WE) and just take a tree model, change its patching, and replace its model with the wall and using trigger just destroy the wall (which is a cleverly disguised tree)