destroying

well i have thought it might be possible to add later that feature where you could destroy buildings or sth like that or you crush into a tree and it will be destroyed while you hit the ground.is it possible with the old hl engine?

how about making it so you can destroy building and when you shoot the beams near the ground it makes a mark where you shot it at so if you shoot a big beam like the generic beam at full power you couldn't get heart be your beam