Round Based Game Script?

Im trying to make a 'round based' game (similar to The Mad Murderer, Death Run etc). Im not great or horrible in scripting tough i haven't scripted in a month or so (school <.<). Anyway, the best thing to do would be; making a 'base' script for a round based game which i could also use for other games. I'm trying to make prototypes but i'm not really comfortable with what im doing. Here's the script i made so far:

http://pastebin.com/cYThn8sM

Im not really asking you guys to 'fix my script' or 'make a script'. I'd appreciate it if you could give me ideas on how to make a game round based. Help?

After looking at you code the things you would need are :

1. A loop that repeats from line 16 to the end of the script so that the rounds keep going.
2. A timer after the door is opened.
3. Win detection, if the game needs it.

If you have any questions, concerns or just need some help with this PM me on ROBLOX!