This will allow player to ride metro train keeping player's on foot camera including 1st person ofcourse. So with this you'll loose all original metro cameras, thats if you prefer to ride inside like in Watch Dogs game.
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V3
- added middle car for proper longer trains

Trains settings set for up to 4 cars with equal variety...
...source file is courtesy of Walter and his excellent Improved Trains mod.

Because metrotrains are using default PURE WHITE paint, you have to replace carvariations.meta along with vehicles.meta, both included in pack

V4
- fixed metro horn to original (requires vehicles.meta replace)
- fixed wrong carvariations path
- added CROWD fix. From now on you can stand in crowd in peace,
but if you run into them, they still get angry.
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default installation included in RAR,

But you can add this in any other custom location of your preference, or mods folder as longest corresponding vehicles.meta has added lines for this.