BenjaminLSR

/*
 * Explosive Sheep
 */

enum
{
    SPELL_EXPLOSIVE_SHEEP_PASSIVE   = 4051,
    SPELL_EXPLOSIVE_SHEEP           = 4050
};

struct npc_explosive_sheepAI : ScriptedPetAI
{
    explicit npc_explosive_sheepAI(Creature* pCreature) : ScriptedPetAI(pCreature)
    {
        m_creature->SetCanModifyStats(true);

        if (m_creature->GetCharmInfo())
            m_creature->GetCharmInfo()->SetReactState(REACT_AGGRESSIVE);

        npc_explosive_sheepAI::Reset();
        npc_explosive_sheepAI::ResetCreature();
    }

    bool m_bExploded;
    uint32 m_uiAliveTimer;

    void Reset() override
    {

    }

    void ResetCreature() override
    {
        m_bExploded = false;
        m_uiAliveTimer = 3 * MINUTE * IN_MILLISECONDS;

        m_creature->CastSpell(m_creature, SPELL_EXPLOSIVE_SHEEP_PASSIVE, true);
    }

    void JustDied(Unit* /*pKiller*/) override
    {
        if (auto pPet = m_creature->ToPet())
            pPet->DelayedUnsummon(5000, PET_SAVE_AS_DELETED);
    }

    void UpdateAI(const uint32 uiDiff) override
    {
        if (!m_bExploded)
        {
            if (m_uiAliveTimer <= uiDiff)
            {
                m_creature->CastSpell(m_creature, SPELL_EXPLOSIVE_SHEEP, true);
                m_bExploded = true;
            }
            else
                m_uiAliveTimer -= uiDiff;

            ScriptedPetAI::UpdateAI(uiDiff);
        }
    }
};

CreatureAI* GetAI_npc_explosive_sheep(Creature* pCreature)
{
    return new npc_explosive_sheepAI(pCreature);
}

newscript = new Script;
newscript->Name = "npc_explosive_sheep";
newscript->GetAI = &GetAI_npc_explosive_sheep;
newscript->RegisterSelf();

This is what can be found within elysium core.

Confirmed !

What about Phase 4 : Fix pathfinding / NPC on transports ?

Any update on this particular topic ? We're still facing sync issue with the tram and we never get the two lines working simultaneously without doing similar workaround from @madmax.