Duel weapons

I was playing around with the game bloack land and decided to make some left handed versions of the weapons my problem is is that the left handed weapons wont fire at the same time as the right handed weapons and im not entirely sure why or how to change that, i did make the left handed weapons fire when nothing was equipped in the right hand but i did something and screwed that up today lol guess I do better at 3 am i just cant remember what I did lol. well any advice/tips whatever would be helpful.




Thanks.