Boris, Mackay, Sundance, Paik, Dozer and Irish (just his perk / gadget, not the character itself). Easy fixes for them:
- Give them some serious looks and attitudes
 - Boris: Remove that stupid aimbot turret and let him build fortifications or stationary weapons
 - Mackay: Remove that stupid selfish grapple hook and his ads perk. Give him limited ziplines for the whole squad
 - Sundance: Limited grenades, cooldown on her wingsuit and make her deploy a parachute
 - Paik: Just remove that stupid wallhack and remove that stupid passive wallhack. Wtf even is this? Other players are punished for shooting on her
 - Dozer: Selfish perk, should be replaced by a team perk
 - Irish: Remove his stupid armour plates, let him build fortifications and let him repair vehicles faster
 
Other than that: Remove stupid selfish gadgets like armor plates and self healing pens.