When it comes to junk fat distance is key for him because if he’s up close he becomes pretty vulnerable if you don’t know how to use him right. Keep an eye on using your damage for shields or meat bags because ult charge comes from mostly them. Once in a while I use junk as a stealth character in a fight because coming from behind scares all of them since they aren’t focusing you. Using the mine to both kill and for a quick escape is always a win. Soldier I don’t play too much of, but don’t just use your healing pod for yourself. Your team needs healing too so don’t be afraid to spare it for them if the healer died during a fight. It helps your ult charge out quite a bit as well. I wish you luck!