I have the models,animations and fire sounds for the thunder gun how would I script a thundergun to make it shoot wind projectiles like (or similar to) Black ops 1 

resume: make an script which waits the players until they fire and do an "if" to check if they fired the thundergun, if so then make it thread a function which plays the thundergun fx and throws the zombies away if they are in the players view vector.

A start would be to reference the BO thundergun script. If you have basically no scripting experience in this engine jumping straight to a weapon as advanced as the thunder gun isn't the greatest idea.

Thanks for the tip