Basically I am looking for an historically approach for squadron training and so the main missions will last 2-3 hours and are concentrated on one area, but every mainmission, might concentrate on another area. Therefore the submissions will be loaded every 3 hours. The intercept planes, triggered by planes entering a certain area, are reloaded every 2 hours, same for patrols over the channel.
This way I do load missions every 2 hours this shall keep the spawn freezes at bay and does not lead to a too crowded channel.
(I put all AI on radio silence, too, hope that does not cause problems with the radar.)
If I include the removal script into the main script, the AI will be removed no matter which submission loaded them. I think, but am not quite sure due to tie inaccuracy, the removal in the submissionscripts, do only remove the mission-loaded-AI and not the AI of other mis.files.
Some AI planes spawn, start rolling and disappear but keep on rolling as you see in the external view, this already after 30 seconds in game. Vessels too. The same happens without any script at all. When I host on my PC or play the mission SP, I do not have any problems, only when I play as client on our dedicated server.