Can someone either give me a quick overview or link a decent tutorial on how to have:

A tank, that once hit with a bazooka 'explodes', hurting everyone within a defined radius and destroys part of a wall nearby

I had a go but multi-managers aren't my specialty :P

First you should try the search button you lazy ... :P

Seconldy, we have a nice and shiney new subforum called Tutorials and Q&A ... does it give you any hints? :D

Now just to show you that Im a nice guy: I found this using the search button. http://www.dayofdefeat.net/forums/showthread.php?s=&threadid=6350

You should easily be able to modify it for your needs...

You do not need a mm...set the tank func_breakable hurt to 300 or so...that way anyone withing earshot of the tiger will get hurt. Make the tiger func_breakable a bazooka-only target. Build your wall to the side of the tiger with the hole in it first...as if it had already been blown...then place one large func_breakable over the hole matching up the textures perfectly (use the cinderblock gib...it looks cool)...make that breakable a trigger-only breakable and name it "wall". In the Target Field of the Tiger Tank breakable place that smae name: "wall"

So...you have a func_breakable over the tank that can only be shot w/a bazooka...it breaks and it's explosive power of 300 kills folks nearby...when it breaks it sends a signal to the func_breakable wall that causes it to break to.

You can then add stuff to it later for effects...like shooting off metal gibs or adding fire or smoke...but the entire thing can be pulled off reasonably well with ony those two func_breakables. A while ago I posted a small rmf with a bunch of breakable stuff in it and a fireable 88mm cannon...if anyone has that and would like to post it that would also help...in that rmf there's also a piece of flooring that falls down like a wall might fall down...it's a rotating door set on it's side...so there are a bunch of ways you can make a sequence like that