I'm with xEd_The_3rdx whit this one. Bring back BF3 hardcore mode. No overhead markers, ff on, spotting as long as you see the enemy, adjust the dmg on weapons to match the supposed caliber of the gun and range so the TTK is way shorter.
Atm no point in single fire (which is an option) because you lose every fight because now it's just spray spray spray and the rpm of the gun is the key factor.
For example MG/LMG should be a terrifying weapon in the battlefield keeping choke points but atm it is just a slower rpm weapon which loses you the fight when you are against an SMG.