When a Bradley has been updated to a Bradley Tier

OnBradleyTiersVanillaSpawned(BradleyAPC bradley)
OnBradleyTiersEasySpawned(BradleyAPC bradley)
OnBradleyTiersMediumSpawned(BradleyAPC bradley)
OnBradleyTiersHardSpawned(BradleyAPC bradley)
OnBradleyTiersNightmareSpawned(BradleyAPC bradley)

When a Bradley Tier has been destroyed

OnDestroyBradleyTiersVanilla(BradleyAPC apc, HitInfo info)
OnDestroyBradleyTiersEasy(BradleyAPC apc, HitInfo info)
OnDestroyBradleyTiersMedium(BradleyAPC apc, HitInfo info)
OnDestroyBradleyTiersHard(BradleyAPC apc, HitInfo info)
OnDestroyBradleyTiersNightmare(BradleyAPC apc, HitInfo info)

When a Bradley Tier is taking damage

OnBradleyTiersHitVanilla(BradleyAPC bradley, HitInfo info)
OnBradleyTiersHitEasy(BradleyAPC bradley, HitInfo info)
OnBradleyTiersHitMedium(BradleyAPC bradley, HitInfo info)
OnBradleyTiersHitHard(BradleyAPC bradley, HitInfo info)
OnBradleyTiersHitNightmare(BradleyAPC bradley, HitInfo info)