No idea about the knife. Try using a different texture on a wall.
Check the properties I think there's an invisible check button. Also what kind of brush did you use. Maybe you used the wrong one. Can you walk through the walls?

Did you look through the API, it must be possible!

Hi, I'm back! It's been awhile.

The launcher compiles my map fine except for 2 empty brush model entities.
When the game launches the following keeps popping up: "Error linking script 'scripts/zm/zm_gladiator.gsc" (gladiator is the main script)

It&...

Call me boring, I'd rather sit in black.

It is possible. Google it. I deleted the opening cutscene and in process deleted forest scene. It was replaced with just black. Pretty sure menu loaded faster. Needing to load the menu. What a load of crap.

Use one trigger and count how many times it is activated.

[code]
level thread blah()

counter = 0;
function blah() {
  trigger = GetEnt("hint1", "targetname");
  trigger SetHintString("Hold ^3&&1^7 to purchase Shield...