I solved my own problem...
Ok attached is a mission set which may prove useful to some.
included is a collection of some of the 1c listed scripts, however modified for specific needs.
Despawning is modified, ai despawn on completion of path and or by time period.
This allows for players to fly groups of bombers and not lose aircraft functions or have it despawn.
Time period is adjustable for mission design.
despawning on path has one possible bug where if you have the ai fly over the last waypoint it can trigger despawning, other than that it works well.
Triggers included (for UK) random selection(4 missions), with trigger deactivated for random time period, then resets.
For de I have 2 cascading missions with preset(adjustable) reset period.
In both cases they only activate for players and are side specific.
Also included is timer counter displaying Mins,Seconds and tick, useful for mission time debugging.
I have missions and messages setout for easy alterations,designed for new users in mind (as i am).
hope it helps.
thanks for those scriptors I borrowed stuff from, maybe these iterations can be added to script sections.
regards