if the weapon is electric then mabee try and build it into a lifter to lift your opponents drive and pushing them at will. there was a sucessful robot called Panic Attack also i think jonno has a robot there called Pain in the Asp which is a very good example and 1 of my favourite feathers. i find it very exciting that there are a new bunch of budding roboteers in another country and we in the uk welcome you all to the sport of roboteering. you can check my profile for my personal email address and feel free to ask for anythink to help you on your way. you do have there 1 of the best tutors so you wont go far wrong. i will be looking here every time i log on. again welcome and enjoy battling robots