Here is All The Classes You Need For CB and GB:

GameBattle Classes:

Custom Class 1:

Primary:UMP45 FMJ
Secondary:G18 Akimbo
Equipment: Frag
Special Grenade: Stun Grenade x2
Perk 1: Marathon Pro
Perk 2: Stopping Power Pro
Perk 3: Ninja Pro
Death Streak: Copycat

Custom Class 2:

Primary: M16A4 RedDot
Secondary: M93 Raffica Akimbo
Equipment: Frag
Special Grenade: Stun Grenade x2
Perk 1: Sleight of Hand Pro
Perk 2: Stopping Power Pro
Perk 3: SitRep Pro
Death Streak: Copycat

Custom Class 3:

Primary: MP5K FMJ
Secondary: M93 Raffica Akimbo
Equipment: Blast Shield 
Special Grenade: Stun Grenade x2
Perk 1: Marathon Pro
Perk 2: Lightweight Pro
Perk 3: Ninja ProDeath Streak: Copycat

Custom Class 4:

Primary: TAR-21 FMJ
Secondary: .44 Magnum FMJ
Equipment: Semtex
Special Grenade: Stun Grenade x2
Perk 1: Marathon Pro
Perk 2: Stopping Power Pro
Perk 3: Ninja ProDeath Streak: Copycat

Custom Class 5:

Primary: ACR FMJ
Secondary: M9 Akimbo
Equipment: Frag 
Special Grenade: Stun Grenade x2
Perk 1: Sleight of Hand ProPerk 2: Stopping Power Pro
Perk 3: SitRep Pro Death Streak: Copycat

Custom Class 6:

Primary: AK-47 FMJ
Secondary: M93 Raffica FMJ
Equipment: Semtex
Special Grenade: Stun Grenade x2
Perk 1: Marathon Pro
Perk 2: Stopping Power Pro
Perk 3: Ninja ProDeath Streak: Copycat


Custom Class 7:

Primary: AUG HBAR Grip
Secondary: M9 FMJ
Equipment: Semtex
Special Grenade: Stun Grenade x2
Perk 1: Sleight of Hand Pro
Perk 2: Stopping Power Pro
Perk 3: SitRep ProDeath Streak: Copycat

Custom Class 8:

Primary: P90 FMJ
Secondary: G18 Akimbo
Equipment: Semtex
Special Grenade: Stun Grenade x2
Perk 1: Marathon Pro
Perk 2: Stopping Power Pro
Perk 3: Ninja ProDeath Streak: Copycat

Clan Battles Classes:

Custom Class 9:

Primary: Intervention    Extended Mags or FMJ
Secondary: .44 Magnum Akimbo
Equipment: Blast Shield
Special Grenade: Smoke x1
Perk 1: Sleight of Hand Pro
Perk 2: Stopping Power Pro
Perk 3: Ninja ProDeath Streak: Copycat

Custom Class 10:
Primary: Intervention    FMJ or Exrended Mags
Secondary:M9   FMJ
Equipment: Blast Shield 
Special Grenade: Smoke x1
Perk 1: Marathon Pro
Perk 2: Stopping Power Pro
Perk 3: Ninja ProDeath Streak: Copycat

P.S: You Will Need These Classes If You Are On The Clan Battle or GameBattle Squad For aG. Look On Clan YouTube For The List!