Hi there,
My idea is simple - randomize mission timers and make them scarcer over all. Perhaps even add that during a random day of the week, smuggle doesn't take place at all.
Why? It has become rather sad to watch. A good portion of the player-base have forgotten the concept of roleplay and only logging once in two hours to part-take in a smuggle, only to disappear again until five minutes till the smuggle takes place. It has gotten to a ridiculous point where certain players, who are an absolute majority, even set timer countdowns until the smuggle so they can log in once it takes place.
How would this help? For one, it would filter out people who are in the server only for the TDM/Mini-mission aspect for it. Two, it would make people to be more active so they do not miss a smuggle or mini-mission, seeing how nobody could predict when would it take place.