Got a hold of a T4 Emperor's Arsenal book from a friend to look through, and I noticed all the different point defense lasers and VRF gauss, especially those mounted on the different battle dress suits. Seeing as how I do not have the T4 rules, can anyone tell me how those work rule-wise? Or share ideas for any home rules for point defense you may use? And not just for BD, but also vehicle/starship point defense besides sandcasters. Thanks.