Hey, well sorry to say this but some missions have vehicle spawns and others don't. There is no solution to this except spawning vehicles in using cheats. The guys working on SP releases were more focused on Chernarus and Namalsk before. Now AboveDayZ is making other releases quite fast and improving them. If you have not yet done so, or other people haven't in those separate threads make a suggestion to include vehicle spawns, by the way you might be using an older version of a release so look for updates.
Again. as AboveDayZ has stated in another bug report thread, it depends on who added what to the mission.
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