I've been following the forum for a few days and I plan to pick up ArmA 2 soon to play the mod. From everything I've read in the forums this sounds like the kind of thing that would be really useful. It seems when people get bored they turn to banditry to keep interest in the game. This may serve as an alternative for would be bandits with a small modification. The little modification I would recommend is to script periodic infected sieges on the safe zones. The longer a zone remains safe, the more dangerous (number) the infected sieges become. The idea being that a safe zone isn't completely safe and the longer you sit around in the zone relaxing the more you should fear sticking around. This turns the safe zones into a decision like anything else in the game. Although you might stop in for a short while to refill your canteen and trade with other players to fill up on ammo or just get a meal for the day, you will need to think about the risk of staying around too long and risk getting caught in an overwhelming attack. Players who've been around a long time and are bored of the usual survival aspects can take up the role of protecting the safe zones and policing them from infected and bandits. Or even these players could be the ones to set them up in the first place. Others have discussed the idea of player run safe zones. Perhaps NPCs could be involved but maybe these zones don't exist unless players gather resources necessary to construct them in the first place. For example, spare weapons are required to initialize the safe zone in the first place. Upgrades such as guard posts would need to be constructed by using scrap metal, toolboxes, wire fencing, tank traps, etc. The strength of the safe zone would then be directly related to the player involvement. Perhaps you get a team of survivors that can keep one active for a day or two, maybe it doesn't last more than a few hours when the first assault hits. In short, I think this sort of idea lends well to long term play to possibly offset the boredom the veteran players seem to be facing. This would give them quite the goal to devote their resources towards. A sort of post-apocalyptic survival tower defense :)