MOD 1 – AUTO LEAN:WHILE AIMING DOWN SIGHTS, you will automatically lean while strafing left or right. This is especially useful with shotguns.
MOD 2 – CROUCH AIM: WHILE FULLY AIMING DOWN SIGHTS, you will crouch. As you RELEASE AIM DOWN SIGHTS, you will stand.
MOD 3 – RAPID CROUCH AIM: WHILE FULLY AIMING DOWN SIGHTS, you will rapidly crouch, which makes you difficult to hit.
MOD 4 – AUTO LEAN & CROUCH AIM: MODS 1, 2.
MOD 5 – AUTO LEAN & RAPID CROUCH AIM: MODS 1, 3.
CLASS 4 – REFERENCE TABLE
Master Quick Control: WHILE HOLDING TOUCHPAD / VIEW, TAP OR to DISABLE THE ENTIRE PACK, except for Hair Triggers and Flipped. To reactivate your MODS, switch back to the appropriate profile for your current weapon. See the ADVANCED PROFILE SYSTEM section for more for information.
Profile Switch & ADS Anti-Recoil: See the ADVANCED PROFILE SYSTEM section.
CLASS 4 MOD
INFORMATION
0: MOD Disabled
OFF.
1: Auto Lean
WHILE AIMING DOWN SIGHTS, you will automatically lean while strafing left or right. This is especially useful with shotguns.
2: Crouch Aim
WHILE FULLY AIMING DOWN SIGHTS, you will crouch. As you RELEASE AIM DOWN SIGHTS, you will stand.
3: Rapid Crouch Aim
WHILE FULLY AIMING DOWN SIGHTS, you will rapidly crouch, which makes you difficult to hit.
4: Auto Lean & Crouch Aim
MODS 1, 2.
5: Auto Lean & Rapid Crouch Aim
MODS 1, 3.
IMPORTANT: Type A (Toggle Aim) is UNSUPPORTED with several MODS. These include ADS Anti-Recoil, Auto Hold Breath, Auto Lean, Crouch Aim, Quick Scope and Rapid Crouch Aim. This is because these MODS require you to HOLD the Aim Down Sights button, which goes against the concept of toggle aim.
OR 
to DISABLE THE ENTIRE PACK, except for Hair Triggers and Flipped. To reactivate your MODS, switch back to the appropriate profile for your current weapon. See the ADVANCED PROFILE SYSTEM