Have you played starcraft before?
Well, marines have a certain ability to get "stimmed".
It increases damage and speed for a short time, at the expensive of health.
I thought that it would be awesome to implement this into CS:S.
I have the marine sound, "Aw thats the stuff", so if you could include that, it would be awesome.
This would not only be great for normal servers , but for zombie servers as well (if the humans get to foolish, they will kill themselves with the stims)
I was thinking about making the stims risky to use, as in they did a random amount of damage but no more then 60, but greater then 30.
Also, a small probability to react the wrong way would be cool as well (eg the mani drug effect)
I would write this myself, although I simply do not have the time nor the experience