Very Glitchy

Bot's don't know , what they actualy doing. Still switching nades.
They haven't good script  for trowing grenades, so they will trow pipe/mol on 1 zombie (For example)
Bot's AI is not made for Grenades, so if you want to make it wokr good, you will need re-write whole AI-scripts.

Very Good Vocalizer for L4D2

It's very simple , it's AWESOME!
(now this addon takes 50% of my keyboard XD)