i believe i saw one not too long ago, i will try find the link for you
quote from link below
Quote: "The ally controls are the following
1. Z will have him engage the enemey
2. C to have him crouch
3. F to have him move forward
4. B to have him turn around and run back
5. X and V will have him turn around corners
This script DOES NOT require mods.
The ally will kill the enemy.
The ally will follow you.
You can have multiple allies."
[EDIT] this 1 looks and sounds good
http://forum.thegamecreators.com/?m=forum_view&t=129769&b=23
http://www.afrokid-fps.co.nr