thought of a few others............

As skinnyminiman said, some people cannot be hit with a knife, and some people can spawn in the government building. This glitch is actually VERY easy to do. When the round ends all you have to do is stand still and make NO MOVEMENT at all. Then you will spawn in the SAME EXCAT spot the next round. So anybody can spawn ANYWHERE its just where you are when the round ends and depending if you are standing still or not.

so
round ends + standing still = glitch mode
round ends + moving = no glitch mode

Also, I have found that sometimes when the round starts it will give you $3000 like in a normal game of css. I'm not really sure if you wanted it this way nat but i'm just saying.