I'm in sort of "pre-planning" for a mission with random play. That being said, I've been pre-planning it for the past three months or so !
The mission sees you as one of three assassins called in to Everon for a major job. Random civilians and police patrol the entire island (mostly by simpy having one group continuously teleport itself to the town nearest to your current position !), in addition there are a number of fixed people you have to link up with.
The first is a courier who meets you at the start. He has an addaction, which when activated tells you where "Mr Big" is currently based. Mr Big can be in any one of five spots, determined at game start by use of a random setPos command (ie - roll dice - if result is one then setPos to the game logic unit at St Pierre, if result is two then setPos to Le Moule etc).
Mr Big gives you $5,000 (publicVariable, amount can be displayed as a hint at any time as an addaction) and the location of TWO weapons merchants. There are six in total - handguns, longarms, sniper weapons, missiles, explosives and goons (additional team members).
Each arms merchant has a random start position as well and each of them has two addactions to buy weapons (eg - AK47 or G36, Hunting Rifle or M21 etc) and one to find the location of two more arms merchants.
To get around the island you will be able to rent cars, motorcycles or trucks or take one of the buses which continually circle the island.
Once you have your weapons you then have to hunt your target (a leading political figure) by going from town to town, querying the locals (addaction again !) until you find out where he is. After that, all you have to do is bypass the guards, waste the target, get back to Mr Big for your final payment and get off the island.
Of course, once the target is dead you are now setCaptive false so now every cop and soldier on the island will be gunning for you !
I know that all of the above is easily eachievable, it's just tedious to set up. All of my missions use time dilation (ie skipTime) so that days pass in minutes - I like the "campaign" feel it gives. It also makes mision planning important - do we attack now or wait until nightfall ?
If you're interested in helping me create and test the mission let me know and I'll send you a beta once I get off my rear and get it done. A good kick in the back side usually gets me working !