The script has worked in an invisible way yes. I tried it with a friend and the CTF system did work, you just didnt get an updated flag position. When you joined the game you sw the position of the flag at the moment of joining, so youd see an floating flag. When that happened i got sick of CTF and stopped working
That script you wrote kind of looks like it. If you go to the bfeditor.gotfrag.com then user tutorials then spawning objects with python (a horribly wrong named topic tho) you get a link to the doomlabs site with a small tutorial. In partialy explains how to make CTF, the python jsut inst included. Maybe you cna mix the 2 together and haave fully operational CTF, i dunno.