I search action code of blockmaker who shows where is CT's and TT's players.
Example with Paint Image...
http://img846.**************/img846/6398/showw.png
Sry about my bad creation with PAINT...
With another words... When player steppeed on this block will show Red and Blue lines. To CT (blue lines) players and (red lines) to TT players.
CT - Counter-Terrorists Team
TT - Terrorists Team
Sry about my english...