if you are having trouble as fireteam, go play predator for a bit …
for example game I played 4 secs ago, landed on 2 fireteam with blast jump, put a net on the third. downed the two shocked. and then had to second wind (because some how the netted guy cut through titanium with a stainless steel knife while not being able to use his limbs), I then ran the entire distance of the map (have second wind extend perk), to have the scout that somehow kept up with a giant alien lifeform (after they were blinded with the new patch), just stand their and shoot me with a pistol while I healed…