i gave ED-E the alien blaster to hold for me and he started using it and im wondering does any body know if he will use other weapons if i give them to him

I've heard of him using that as well. I don't believe there is anything else he is capable of using except in rare occurrences the Alien Blaster.

I saw a thread about ED-E using the Gauss Rifle or the unique version of the Gauss Rifle..