Battlefield 5 - Weapon mastery 5 Challenges

The weapon mastery 5 assignments cannot be completed. The criteria in 1 life is the reason why I think they cannot be achieved. Regarding those that have a requirement that the target needs to be on the objective. Especially those that have headshot requirements attach to them. In a game that is designed to be a run and gun style of playing makes it impossible. Another argument that these assignments are unachievable is using a weapon in its weakest form of use (example: hip firing a sniper rifle, trying to get headshots with a heavy machine guns, etc.). Not to mention the cause and effect on a team. This has happen to me several times while playing where I have been kicked from squads, squad and teammates have gone out their way to sabotage my ability to complete the assignment by either throwing smoke on top or in front of me, stand in line sight or in line of fire, do something to draw either attention or fire to my location, throw explosives or shoot me, use various vehicles to run me over or push me out of my locations. This clear evidence of animosity from other squad and teammates for contributing no effort in taking objectives and winning the match. I get it, no one likes to lose. I posted this because I think everybody want to enjoy playing the game. I want to come home from work sit down blow off some steam on a game that is fun playing by shooting each other and laughing about it at the end like everyone else. please comment on you take weapon mastery 5 assignments. Thanks