The following Global MODS and PURPLE MOD Central settings can ONLY be setup in MOD Central:

HAIR TRIGGERS once set in MOD Central, register as fully pressed as quickly as possible to improve reaction time, without affecting MODS such as "ADS Dynamic Fire".
TURBO MELEE allows you repeatedly melee as quickly as possible for the best chance of winning a melee battle.  Once Turbo Melee is set in MOD Central:
HOLD MELEE to repeatedly melee as quickly as possible.