Some badass suggestions.

[Deer_Hunter]

     - Raise the time limit before players can do /dive /inf /taxi .

Current limits:
/dive - once per minute
/inf - once per 3 minutes
/taxi - typically this takes ~10 seconds, which increases to a minute or two if you use it again within a short period of time. I'm not sure of the exact formula behind the taxi system.

As I said, I made a mistake, actually I was thinking of  possibility to use these commands after being shot by someone. 
Imo time limit of 30 seconds for each command would be much better.

@carbombs, 
If you try to make a set up and put an engine bomb, after some time car will respawn, maybe adding a couple minutes more before that happen ?