Normally you want to have a video up to show people so try and get a capture card from best buy or something (for future posts). And you don't need a barrier just join a game with a good group of friends and you won't have to worry about that since they won't get dogs then. Or if they do get them then just run around like normal, and you can hear the dogs so then when you do you can just knife them. The reason for that is then if you camp in a corner your team will will not get points really from you as much as they would if you run at them while they have the dogs. The reason for this is that they would think that most people would be hiding to not die from them when in reality they barely are a problem at all. So they would have their guard down more than normal so then is the perfect time to strike.