Using the high jump feature changes the gameplay of classic missions:
For a more permanent change, you can use the IGI Toolkit on GitHub , which is a comprehensive editing suite for IGI 1.
Installation typically involves modifying the game's internal data files or using a third-party injector. Method 1: File Replacement (QVM Modding)
The high jump feature is rarely used in isolation. It is typically part of comprehensive mod packs that modernize or "break" the game for fun: