Same armor, might have different acc on the move. Edit (someone said it)
@Alex: vet is basically the same besides last levels.
Vet0: Aura 20 sight range, +10% speed +10% ac/de-celeration
Vet1: Unlocks the 'Combat Blitz' ability
Vet2: +10% armour, +20% health +10% weapon rotation speed Aura: +20% accuracy
Vet3: -10% reload, +10% rotation speed +10% ac/de-celeration Aura: -20% reload
Vet4: Aura: +5 range
Vet5: Aura: Infantry affected too
Vet1: Unlocks the 'Combat Blitz' ability
Vet2: +10% armour, +20% health, +40% weapon rotation speed
Vet3: -30% reload, +20% rotation speed, +30% ac/de-celeration
Vet4: +10% range -25% scatter
Vet5: +53.85% accuracy on the move, +45.8% sight range
The 20% accuracy and 20% reload are added to the aura not the C-Panther.