I am new to making maps, and this is my first map but i need help with a couple features. If you would be so kind as to tell me how to fix this map i would greatly appreciate it.

First of all i need to make a working firestation so cars that are blown up disappear after a while instead of staying in one place.
Second, i have no idea why this is happening, but some of the powerups are constantly floating in mid air. i have no idea what causes this, and no matter what level i set them at they still seem to be suspended in air where you cant get them.
Lastly, i need help making the powerups respawn. I tried looking at other maps ini files, but i couldnt figure it out.

please tell me before you mess around with this map and post it.

Anix
  -  djtribbles@hotmail.com