Ok, a while ago I decided to make an SP mappack comprised of various puzzles, and I recently had the urge to map it again, and I've found (like most things) it looks good on paper (MSpaint actually) but implimenting it is another thing all together!
One puzzle (the first one actually) comprised of a door you must jam open with a large pushable crate in order to crawl under it. However, certain crates are covering holes in the walls, from which spring snarks.
The problem is that the little gits are stronger that I suspected and can actually push the crates out of the road. Can anyone think of a little trick, or some alteration to the puzzle that would keep the little shits in there once its blocked off? I'm stumped!