[Exolent[jNr]]

Don't bump until 2 weeks have passed since last post.

To use Ham_Item_Deploy, you need to grab the player's index from the entity that is passed to the function

#include <amxmodx>
#include <nvault>
#include <fakemeta>
#include <hamsandwich>

// private data for weapons
const XO_WEAPONS = 4;
const m_pPlayer = 41;

public plugin_init() {
    // hook after the knife has deployed
    RegisterHam(Ham_Item_Deploy, "weapon_knife", "FwdDeployKnifePost", 1);
}

public FwdDeployKnifePost(entity) {
    // check if entity can has private data
    if(pev_valid(entity) == 2) {
        // grab the player id holding the weapon
        new id = get_pdata_cbase(entity, m_pPlayer, XO_WEAPONS);
        
        // grab models
        new v_model[64], p_model[64];
        GetModels(id, CSW_KNIFE, v_model, charsmax(v_model), p_model, charsmax(p_model));
        
        // if has view model
        if(v_model[0]) {
            // set view model
            set_pev(id, pev_viewmodel2, v_model);
        }
        
        // if has player model
        if(p_model[0]) {
            // set player model
            set_pev(id, pev_weaponmodel2, p_model);
        }
    }
}