I recently came across some info that said there is a weapon in Fallout Tactics called the Spasm Nuerodisrupter , but have never been able to find it in the game. I searched this site and Freelancer, but couldn't. There were also a few other weapons. It seems you don't get access to weapons in the bunkers unless you find them first. The only "new" weapons I could find was the acid grenade and the rifle in the mission with the APC.