Missions problem

[The Cookie]

so today i was playing and polishing off a chinook yellow mission, as i got the ai count down to 3 or 4 i started approaching then it said "players did not secure the armed helo in time" and the loot, corpses, and objective dissapeared, then a bandit patrol came on the radio and moved about, me and pumpkin decided to chase it out of khelm when a few seconds later it announced it had arrived in pustoshka about 9k away, finally me and pumpkin engaged in a weapon cache mission and i died, 2-3 mins later "survivors did not secure the weapons cache", i dont know whats going on here but just wondering if it can be fixed, thx

[Sandman]

The mission system we have in place right now is complex and capable of many things, but seems to be a bit on the buggy side. There is actually a routine that is supposed to keep missions from de-spawning if a player is within 500m from the mission. I can make that a little wider to say 800m or so if that will help.