1. Open SparkIV and browse to pc > models > cdimages > weapons.img and click "Edit"

2. Select "rpg.wtd" and click "Edit"

3. Select the icon texture and click "Import texture"

4. Import the new RPG icon from the "Icons" folder

5. Do this to every weapon, then click "Save" and "Rebuild"

6. Browse to pc > textures > hud.wtd and click "Edit"

7. Replace "throw_icon", "fist_icon" and "dropgrenade_icon" with the new ones