Hi TimoThis is what works for me as of five minutes ago in FSX with Acceleration. Load the Milviz F-15E. At the top of the screen there is a bar with the words from left to rightFlights Aircraft World Options Views Help Add-Ons, click on Aircraft. Scroll down and click on Fuel and Payload. Click on change payload. Scroll down past Pilot and WSO. On all of the stations add 500. At the end of adding all the weights save change payload, which will return you back to seeing the F-15E. Click keypad 3 to bring up the payload manager. Add the desired weapons and numbers of them and you can see the weapons loading on to the stations. When you have finished loading weapons click on number pad 3 and you should be good to go. That works for me.Regards Paul Day.