Since their decisive defeats at the hand of the Hellsing Corps thousand of years ago, the werewolves has gone into hiding disguising themselves among the population in many cities worldwide.
Each and every blood moon they would send representatives from every clans to discuss big and small issues and to come up with plans to live with the human amicably, however reports of sabotages with significant death tolls on the human particularly and blatantly destroying infrastructures are coming in hot.
Hellsing had issued them an ultimatum, stop or face extinction! I was wondering since the Hellsing Corps is kind enough of allowing them to iron things out among themselves, they could also borrows their weapons just like how we human fight against the terrorist groups! Hellsing sure wouldn't mind since their weaponry especially the bullets had been electroplated with pure silver coating would be wasted should they are turned against the humankind, so why did the werewolves not make use of this opportunity to use these weapons in their war on terrorism?
Long story short: fearing the ultimatum from the powerful Hellsing Corps, werewolves had little time to waste and must curb their own kinds from committing further act of terrorism on the human population.
Humanity goal: personal gain and prosperity.
Human terrorists: die and be together with their god.
Werewolves: coexist with human.
Werewolve terrorists: vengeance pushing the blame on Hellsing's failure.
Hellsing Corp: make sure humanity is safe from supernatural beings.
P.S: I believe the werewolves can touch silver bare-pawed but a tiny amount introduced into their bloodstream could trigger deadly immune response.