In silver and gold you dont need to worry too much about being headshotted. The only thing that you should be aware of is line of sight, Can your healer see you ... When jumping in try and land on them and punch at the same time, You will knock a lot of health from a dps. When jumping a tank, Its more effective to fire electricity then punch back and fourth. Also be careful when jumping, Last thing you need to is to dive into a reaper or hog so make sure every attack is a coordinated attack.