Hi jldjs,
Lets take a look:
Spawns
1. there is not a good tutorial available on spawns. But what you could do is the following: download the document Daiwiletti mentioned
2. Search and downloads a number of the spawns made by Wulffman (z_ruff_spawns and z2_ruff_spwans or the , new_bob_package). You can't use them anymore in ETO (and Wulffman stated that he doesn't want us to use them anymore), but you could use them to study how they are build. He also made spawns for groundvehicles and ships
3. then rebuild them with help of the document and the helpfile that's coming with the Missionbuilder.
Im still experimenting like you myself. For now, I think it's best to use spawns when you want variety in the game. When you want a plane to do specific things on a specific time and place, then you better create a regular flight in the missionbuilder. But when of the experts have different views, please help us out!
Planes actually meeting
That brings us to the problem that planes in the Missionbuilder (MB) arrive at a specific point at the same time. But when playing the game, you can't see them. I still have to experiment with them. A possibility is that a mission goes wrong when planes in the game have different speeds than the ones used by the MB. You could try this out by making a little test mission. Possible scenario's:
a. only the plane which you fly (player) uses a different speed than the MB uses for the calculation of arrival time. Perhaps this could be fixed by getting the plane to the speed mentioned in the MB before warping
b. also the the speed of the others planes in game is different from the ones used by the MB. At this moment I'am not sure how to fix this, but perhaps some else has an idea?
Then there is the possibility that warping influences the speed of the planes. This can be ruled out by flying the testgame with and without warping. By changing al the variables one at a time we could find a way to fix this.
About AI behaviour.
This problem is mentioned a lot of times in the old threads. Most mentioned is the solution to make sure that every plane you in a mission directly or by spawn has a specific loadout (change "recommended" to droptank or something like that).
When wingman are not doing what you want them to do: give the "rejoin" order then select the target and give them the order "attack" for de the seccond time.
I'am interested in your findings, because I'am struggeling like you do.
Remco