Welding the boss in a room with a back door allows people to circle around and lay waste to him, as long as there is someone welding continuously welding the door. He also get stuck on the medical tables here: http://gyazo.com/a4267462384ea30eb6e7669574ed5067
http://gyazo.com/d95d0a35583e3d27d3e5db253359b528
http://puu.sh/h8TXr/7fd5655547.jpg
You can kite him around and hit him with a hammer. while the rest of your dead team cheers you on :3 http://puu.sh/h8RSz/7feecccf18.jpg
http://puu.sh/h6UgA/79d3bca3b6.jpg
http://gyazo.com/d95d0a35583e3d27d3e5db253359b528
http://puu.sh/h8TXr/7fd5655547.jpg
You can kite him around and hit him with a hammer. while the rest of your dead team cheers you on :3 http://puu.sh/h8RSz/7feecccf18.jpg
http://puu.sh/h6UgA/79d3bca3b6.jpg