[Emmet_]

Yeah you can, the ammo decrements even when it's infinite.

pawn Код:

new g_LastAmmo[MAX_PLAYERS];

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
    if (newkeys & KEY_FIRE && GetPlayerWeapon(playerid) >= 22)
    {
        if ((g_LastAmmo[playerid] - GetPlayerAmmo(playerid)) >= 1)
        {
            // Put your code here, k?
            g_LastAmmo[playerid] = GetPlayerAmmo(playerid);
        }
    }
    return 1;
}