vet2:
reload weapon modifier 0.71
cooldown weapon modifier 0.71
vet3:
reload weapon modifier 0.71
cooldown weapon modifier 0.71
That means with vet 2 he shoots 30% faster and with vet3 50% faster. (I think... maybe its 60% faster with vet3?

Vet3 also gives Armormodifier 2, so I guess he has then 4 Armor?
The Soviet Sniperteam gets exactly the same boni with vet.