disable_oc_retreat.user.js

// ==UserScript==
// @name         Pardus Disable OC Retreat
// @author       Kui
// @match        https://*.pardus.at/ship2opponent_combat.php?*
// @updateURL    https://gist.github.com/likuilin/afbf0351024414844d8445c78ba44df2/raw/disable_oc_retreat.user.js
// ==/UserScript==

(function() {
    'use strict';
    if (Array.from(document.querySelectorAll("font")).some(e=>e.innerText=="OFFENSIVE"))
        document.querySelector('input[value="Retreat"]').onclick = ()=>confirm("Are you absolutely sure you want to retreat on OC?");
})();