Aww, just get a Panzerfaust and blow the hell out of the wall the good old fashion way. (Quite litterally).
Although you'll have to be creative with the weapon (meaning delete the model) you can use something similar to such
:state=0:setalphafade=0,state=1
:state=1,activated=1:useweapon,destroy,state=2
The idea is to have a guy with a panzerfaust aimed at the wall, when you walk into a triggerzone it sends the "activateifused=1" to the UNIQUELY NAMED ENTITY, this causes the guy to fire the gun and in turn blows up the wall.
A few values may have to be changed with the entity wall... and I may be wrong about the "useweapon" command (meaning it's something else) but it SHOULD work.
Its not who you are or what you've done... its WHY you did it and how far you are willing to go.
If you fear speaking for yourself, make use the words of others while discovering your own voice.