DayZ is mostly based on land which fun but it would be cool to add a new dimension to the game. By introduction of Vehicles such as ferries and barge that can transport large numbers of players with the addition of other Vehicles, your island bases will be that much better with other land vehicles at your disposal. Adding a large ship a 1 per server spawn would hopefully give the same rections as the UH-1H for control over a rare item in the game. The ship could be used as a fortified moving base, it would obviously need a lot of repairs and take time to get it to working condition. This would bring out dangerous mission for attacks on the barge and control over the sea. The ship would have to dock and be filled with fuel the sight of a large ship on the horizon would obviously bring a lot of attention and attract snipers an players into one of those epic player interactions situations we love in dayZ.